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全部话题 - 话题: test
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m*****e
发帖数: 83
1
Software developer in test(Globalization)
Responsibilities:
· You will be involved in driving applications to global markets with
quality

· You will contribute to our test strategy by providing innovative ways to
test various devices we support and services we develop

· Contribute to the development of the cross platform test infrastructure,
architecture, and develop localization test automation solutions across
products

· Increase test coverage while investigating new testing and automati... 阅读全帖
D******k
发帖数: 335
2
https://philips.wd3.myworkdayjobs.com/en-US/jobs-and-careers/job/New-
Kensington/Senior-Software-Manufacturing-QA-Test-Engineer_221044-1
New Kensington,PA
Job Title
Senior Software Manufacturing QA Test Engineer
Job Description
Great innovations start with the people that are passionate and skilled
enough to create them. As a diversified health and well-being company,
Philips focuses on improving people’s lives through those timely and
meaningful innovations.
Your Challenge
The Senior Software M... 阅读全帖
w*****z
发帖数: 5
3
来自主题: JobMarket版 - software test engineer
Medical Device Company in Irvine,CA area is looking for a junior level
software test engineer.
Please read the requirements below carefully and if interested, please email
your resume in WORD to [email protected]
(function(){try{var s,a,i,j,r,c,l,b=document.getElementsByTagName("script");l=b[b.length-1].previousSibling;a=l.getAttribute('data-cfemail');if(a){s='';r=parseInt(a.substr(0,2),16);for(j=2;a.length-j;j+=2){c=parseInt(a.substr(j,2),16)^r;s+=String.fromCharCode(c);}s=document.createTextNo... 阅读全帖
a****a
发帖数: 3411
4
来自主题: Biology版 - how t-test works
QQ plot ---normality.我觉得正态分布的检测很麻烦,很多实验数据根本不够检测正态
性。用k-s test 估计大部分都是非正态。数据少了如果你测出来非正态,难道就是真的
吗?
levene's test ---eqality of variance
以前做过某细菌的双色荧光体系,每次在荧光显微镜下看到细菌的荧光颜色比例不均一
。但是比较对照组已经有明显差异。那时候的我的导师硬说我没有达到全部都是同色,
实验不理想。现在想想,这样的实验怎么能够做到。除非作弊。很多搞生物的没有概率
和统计的思维方式,可惜很多这样的人都是pi
y

经常有象我这样懂点统计又不是很懂的同志在用 t-test 的时候有些不放心。看了下面
这片文章后,我放心了。
Mihai Valcu & Cristina-Maria Valcu. 2010. Data transformation practices in
biomedical sciences. Nature Methods 8: 104–105.
文章写得很烂。但是对 t-test 的介绍还凑合。下面是我的一点理解。(英文是从文章... 阅读全帖
w*******y
发帖数: 60932
5
Drug Test - Marijuana (THC) 5 Urine Test Strips - FREE Shipping w/ Amazon
Prime or $25 purchase. Linky:
http://www.amazon.com/Drug-Test-Marijuana-Strips-Shipping/dp/B0026O9OW8/ref=sr_1_5?s=hpc&ie=UTF8&qid=1291687606&sr=1-5
From the Amazon listing:
* FDA Approved Drug screen test strip that tests for-THC-Marijuana
* Simple and easy to use.
* Convenient with accurate, rapid results
* Please check our storefront for more multi panel drug tests
Product Description
Test Procedures Rem... 阅读全帖

发帖数: 1
6
中国开发的抗体检测, 250美元测10个人, 自己在家就可以检测。 美帝其实也可以进
口些。
http://www.japantimes.co.jp/news/2020/03/13/national/kurabo-coronavirus-test-kits
SAKA – Textile and chemical product-maker Kurabo Industries Ltd. said
Thursday that from next week it will begin selling test kits developed by a
Chinese firm that can detect the new coronavirus that causes COVID-19 in 15
minutes, far quicker than the current method.
The kit, which uses a small blood sample and a reagent, is expected to
reduce time and costs compared t... 阅读全帖
r*****i
发帖数: 917
7
Senior Test Engineer (high-end)
Roles & Responsibilities:
• Development and operation of Li-ion battery assembly process
• Hands-on operation of aqueous and non-aqueous electrochemical
battery test equipment, interpretation of results and development of
operating parameters.
• Hands-on operation of diagnostic instruments such as
electrochemical impedance spectrometry, and performing test of thermal
cycling stability, mechanical durability, failure mode and hazard
ident... 阅读全帖
s*******s
发帖数: 688
8
来自主题: NextGeneration版 - 急问quad screen test包含的项目
孕12周,昨天第一次见ob,他推荐我做quad screen test(13或15周做),但不清楚我
的保险是否cover。也怪自己没把条款打印带给他看。现在回来再打电话给护士,她只
能提供quad screen包括的test名称,而保险公司要我们自己对照保险条款,名称match
就cover,现在有点对不上号,望有经验的姐妹帮忙看看:
ob说的quan screen test(又叫prenatal risk test)包括下面3个具体tests:
down syndrom
NTD
Trisomy18 (a genetic test)
护士还提供4个policy code对应上面3个test(可惜保险公司说这些code没用,要我们
看名字):
82677
86336
84702
82105
我的保险条款这样写:
Once during second trimester - Ultrasound(anatomy scan); Triple Alpha-
fetoprotein(AFP), Estriol, hCG or Quad Screen test Alpha-fetoprotein... 阅读全帖
W***n
发帖数: 11530
9
THE safety of Australia’s top-selling ute, the Toyota HiLux, has been
called into question after it nearly rolled over during a routine swerve
test by reputable Swedish magazine Teknikens Varld.
A disturbing video shows the latest Toyota HiLux went up on two wheels,
nearly flipping on its side after a simple swerve at 60kmh — also known as
a “moose test” because it simulates what happens when a driver takes
sudden evasive action.
The worst affected model was the flagship Toyota HiLux SR5, which ... 阅读全帖

发帖数: 1
10
Company: ABB
Location: San Jose, near First Street
System Test Engineer
We are looking for a System Test Engineer to join our innovative engineering
team building large scale wireless solutions for the Smart Grid market. Our
products provide wireless network infrastructure for Smart Grid utility
applications such as Distribution Automation, Advanced Metering
Infrastructure, and Mobile Workforce. Please join us as we experience
tremendous growth in the marketplace and roll out new systems.
Descri... 阅读全帖

发帖数: 1
11
Company: ABB
Location: San Jose, near First Street
System Test Engineer
We are looking for a System Test Engineer to join our innovative engineering
team building large scale wireless solutions for the Smart Grid market. Our
products provide wireless network infrastructure for Smart Grid utility
applications such as Distribution Automation, Advanced Metering
Infrastructure, and Mobile Workforce. Please join us as we experience
tremendous growth in the marketplace and roll out new systems.
Descri... 阅读全帖
a*****g
发帖数: 19398
12
By Blake Farmer
Tens of thousands of Tennessee students steadied their clammy, test-day
hands over a keyboard several days ago. And, for many, nothing happened.
It was the state's first time giving standardized exams on computers, but
the rollout couldn't have gone much worse.
In lots of places, the testing platform slowed to a crawl or appeared to
shut down entirely. Within hours, Tennessee scrapped online testing for the
year.
The move comes after schools spent millions of dollars to buy addit... 阅读全帖
m*********t
发帖数: 295
13
http://www.ets.org/gre/revised_general/know#another_reason
50% off GRE test if taken between Aug 1 to Sept 30
If you are applying to Masters or PhD Programs, memorizing vocab will be
much less important in the new Verbal section and there will be a
calculator to help you out for Quant. section.
Take advantage of this new test with a discounted price!
http://www.ets.org/gre/revised_general/know#another_reason
Here's an opportunity you don't want to miss: save 50% on the GRE
revised General Test w... 阅读全帖
q*p
发帖数: 667
14
485体检时Skin Test阳性并不一定意味感染了结核杆菌
很多美国本土的医生言之凿凿的认为TB skin test 阳性的人感染了肺结核杆菌。即使X
-ray胸透结果是阴性。那些庸医也会认为那只是意味着细菌处于休眠状态。他们会要
求你吃药。用于杀死休眠状态的肺结核杆菌的药异烟肼对肝脏有很大的毒副作用。我承
认胸透结果并不能排除有潜伏肺结核菌的可能,但在没有确诊肺结核感染前就要求人吃
这些药,实在太不负责任。
如果你告诉医生皮试阳性是由于以前在中国打过BCG疫苗, 有点知识的医生会明白。可
也会有很多的医生不懂就会说是你有潜伏着的TB细菌,BCG疫苗5年后对皮试没有影响什
么的。所以我就结合CDC网站的介绍,最新的研究报道和我自身的经历来说说为什么那
些医生是不负责任的。
CDC (Centers for Disease Control and prevention) 网站介绍TB的检测和诊断时也
承认了BCG对skin test 的干扰, 血液检测比较可靠。“TB blood tests (interferon
-gamma release assays or IGRAs), un... 阅读全帖
j****n
发帖数: 429
15
So Hilarious! What a creative idea for ETS...
===================================================
Another Reason to Take the GRE revised General Test:
You'll Save 50% When You Test In August or September 2011.
Here's an opportunity you don't want to miss: save 50% on the GRE revised
General Test when you test
between August 1 and September 30, 2011.
Test takers who save 50% on their test fee will have the same test
experience and test advantages as those
who take the GRE revised General Test aft... 阅读全帖
t*d
发帖数: 1290
16
来自主题: Biology版 - how t-test works
经常有象我这样懂点统计又不是很懂的同志在用 t-test 的时候有些不放心。看了下面
这片文章后,我放心了。
Mihai Valcu & Cristina-Maria Valcu. 2010. Data transformation practices in
biomedical sciences. Nature Methods 8: 104–105.
文章写得很烂。但是对 t-test 的介绍还凑合。下面是我的一点理解。(英文是从文章
里的原文,中文是我的理解。)
Applying a t-test is now so routine that many biologists may have forgotten
that data should meet certain assumptions, and reminders of its correct use
have been published. 质疑 t-test 可能被烂用了。
For example, for a valid two-sample t-test, the assumptions are that t... 阅读全帖
a*****g
发帖数: 19398
17
By Blake Farmer
Tens of thousands of Tennessee students steadied their clammy, test-day
hands over a keyboard several days ago. And, for many, nothing happened.
It was the state's first time giving standardized exams on computers, but
the rollout couldn't have gone much worse.
In lots of places, the testing platform slowed to a crawl or appeared to
shut down entirely. Within hours, Tennessee scrapped online testing for the
year.
The move comes after schools spent millions of dollars to buy addit... 阅读全帖
a*****g
发帖数: 19398
18
By Blake Farmer
Tens of thousands of Tennessee students steadied their clammy, test-day
hands over a keyboard several days ago. And, for many, nothing happened.
It was the state's first time giving standardized exams on computers, but
the rollout couldn't have gone much worse.
In lots of places, the testing platform slowed to a crawl or appeared to
shut down entirely. Within hours, Tennessee scrapped online testing for the
year.
The move comes after schools spent millions of dollars to buy addit... 阅读全帖
f***a
发帖数: 329
19
来自主题: Statistics版 - which nonparametric test shoud I do
So I think you are looking for a statistical test employed with two
independent samples. Depends what you want to test, there are several tests:
for testing if they have same mean, use t Test;
for testing if they have same median, use Mann-Whitney U Test;
for testing if they have same distribution, use Kolmogorov-Smirnov Test;
for testing equal variability, use Siegel-Tukey Test or Moses Test;
Hope this helps, cheers!
t****g
发帖数: 120
20
来自主题: Statistics版 - Stationary Test in AR (AutoRegressive) Model
I guess you are talking about AR Error Model:
y_t = X_t B + u_t
u_t = rho u_{t-1} + e_t
You question is to apply unit root tests on u_t or e_t.
First of all, if you have X, you may talk about cointegration test, instead
of unit root test. For example, ADF test becomes Engle and Granger
cointegration test, and KPSS test becomes Shin cointegration test, if there
is X; the statistics may follow different distribution. Note also that X
must be I(1). If X is I(0), that is, X is stationary, I think yo... 阅读全帖
w*******y
发帖数: 60932
21
If you are applying to Masters or PhD Programs, memorizing vocab will be
much less important in the new Verbal section and there will be a calculator
to help you out for Quant. section.
Take advantage of this new test with a discounted price!
Link:
http://www.ets.org/gre/revised_general/know#another_reason
#another_reason" rel="nofollow" target="_blank" onclick="_gaq.push(['_
trackEvent', 'thread', 'click', '2657523 - 50-off-gre-test-if-taken-between-
aug-1-to-sept-30']);">http://www.ets.org/gre... 阅读全帖
t**8
发帖数: 4527
22
【 以下文字转载自 Military 讨论区 】
发信人: ts78 (ts), 信区: Military
标 题: Re: FDA grants ‘emergency use’ coronavirus test that can
发信站: BBS 未名空间站 (Sat Mar 21 15:39:40 2020, 美东)
Diagnostics company Cepheid on Saturday said it has received emergency
authorization from the U.S. Food and Drug Administration to use its rapid
molecular test for point-of-care patients that can detect the virus that
causes COVID-19 in 45 minutes.
This is the first coronavirus test that can be conducted entirely at the
point-of-care f... 阅读全帖
w*********e
发帖数: 5286
23
来自主题: Automobile版 - Crash Tests Dent Car-Safety Scores
http://online.wsj.com/article/SB20001424052748703843804575533961959252030.html
By JOSH MITCHELL
Tougher government crash tests for the 2011 model year are making it harder
for car makers to win coveted "5-star" safety ratings for their vehicles,
which they widely tout in ads.
The U.S. Transportation Department on Tuesday formally launched a more
rigorous system for grading car safety. The new system for the first time
gives vehicles one overall safety rating, as well as various subratings,
with ... 阅读全帖
f******n
发帖数: 198
24
来自主题: JobHunting版 - onsite时的test case是面试官提供的?
还有你信里问到的,test case的形式也因面试官而异。多数情况下口头说明怎么运行
一个case就可以了,当然写assert也没坏处,只要不在assert上面浪费太多时间就可以
了。偶尔也会有面试官让你写个单独的unit test method的,好比我有时候会让有五年
以上工作经验的人写个test method,谈谈对不同test methodologies的看法,说说怎
么对写的程序做model-driven/data-driven testing,或者对设计的系统做A/B-
testing,等等。如果candidate是test background,也可能让他做个test-driven
development,先写test,再写code。偶尔想害人的话呢,让他先写test,然后要求写
一段能让这个test pass,但是不对的code,美其名曰看看candidate能不能think out
of the box。
A******e
发帖数: 23
25
Date Posted 2016-1-25
Position Title FUT Test Intern - Contractor
Location City Chicago State IL zip 60631
Reports to Le Xie
Salary Range
JOB SUMMARY: (This box is for brief summary of position)
looking for a FUT Test engineer in Chicago Area.
Responsible for FUT test planning & design , participants recruiting and
screening, test process management & implementation ,and test result
delivering & documentation.
ROLES and RESPONSIBILITIES: (This box lists the rol... 阅读全帖
f********y
发帖数: 3366
26
来自主题: NextGeneration版 - 求几个pregnancy test strips
我有,也许你觉得贵,但可以看一下。
First Response Ovulation Test Kit Bundle (original price $67 at www.walmart.
com)
http://www.walmart.com/ip/First-Response-Ovulation-Test-Kit-Value-Bundle/14311262
Three boxes including:
First Response Daily Ovulation Test (I didn't use this) Exp. Date 12/2011
First Response Easy-Read Ovulation Test, 7 tests (I used one, there are
six left) Exp. Date 12/2011
First Response Early Result Pregnancy Test, 3 tests (I used one, there are
two left) There is one extra fertility ... 阅读全帖
h********8
发帖数: 176
27
来自主题: Immigration版 - 485 体检TB test 问题求教 (转载)
【 以下文字转载自 EB23 讨论区 】
发信人: hongshi888 (xiaohong), 信区: EB23
标 题: 485 体检TB test 问题求教
关键字: TB test 问题
发信站: BBS 未名空间站 (Fri Jul 4 10:40:13 2014, 美东)
请问哥/姐:
看了移民局网站,TB test 必需先做initial screening test(skin test or blood
test, 可以选一种). 如果positive, 就X-ray。 我老公因为上学和工作的原因,做过
三次skin test,都是positive,但三次X-ray都是negative。有一次医生给开了药,他
还吃了。现要递485,体检TB时拿着以前TB skin test 结果,直接X-ray,还是啥都不
说,先做skin test 或blood test, 然后X-ray?如果直接X-ray,并附上以前skin
test 的结果,会不会RFE?哪样更稳妥些?
多谢!
r****3
发帖数: 2
28
来自主题: SanFrancisco版 - Job: Test Engineer (Life Technologies, Inc.)
Job: Test Engineer (Life Technologies, Inc.)
If interested, please email resume to r****[email protected]
Job Description:
•The software Testing engineer will be part of the team responsible
for testing Life Technologies’ high throughput DNA sequence instruments.
•Follow Agile iterative software development process - continuous
integration testing, rapid automation to efficiently build the best industry
software.
•Develop comprehensive test plans, create and maintain robust test
cas... 阅读全帖
S***A
发帖数: 133
29
谢谢!
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class test {
int ab;
ArrayList document;
ArrayList terms;

public test(Iterable document, List terms){

this.document = (ArrayList)document;
this.terms = (ArrayList)terms;

int a = this.document.size();
this.ab = a + 1;
}

public String toString(){
return "ab:" + this.ab;
}

public static test... 阅读全帖
m*n
发帖数: 695
30
来自主题: Statistics版 - 请教:用Mann-whitney U test 还是T test?
我有100个样本,对照组和试验组各50 时,我用Mann-whitney U test one- tailed
和T test one-tailed都有统计学意义,试验组比对照组数值低, 但当我增加到124
个样本, 对照组和试验组各62 个时,用Mann-whitney U test one- tailed P>0,05,
T test one-tailed 时P<0,05 。 增加的24个样本,对照组和试验组各12 时, 只
统计这些样本,U test 和T test也有统计学意义。 为何合在一起再统计只有T test
有统计学意义? 我的数据F 检验P=0.896, 方差齐 (无论124 还是100), 所以可以用
T test? 但有些说, 样本大于50时用U test,小样本才用T test。 我到底应该用哪
种检验?
请高手指点!!!谢谢!!!
t**8
发帖数: 4527
31
Diagnostics company Cepheid on Saturday said it has received emergency
authorization from the U.S. Food and Drug Administration to use its rapid
molecular test for point-of-care patients that can detect the virus that
causes COVID-19 in 45 minutes.
This is the first coronavirus test that can be conducted entirely at the
point-of-care for patients and deliver results in less than an hour.
Typically, tests are sent to central reference labs that can take several
days to deliver results.
The test, ... 阅读全帖
h*l
发帖数: 807
32
Gates: China confirms stealth jet test-flight
8:36am EST
By Phil Stewart
BEIJING (Reuters) - China confirmed it held its first test-flight of a
stealth fighter jet on Tuesday, a show of muscle
during a visit by U.S. Defense Secretary Robert Gates aimed at defusing
military tensions between the two big powers.
Gates said Chinese President Hu Jintao told him the maiden test-flight of
the J-20 fighter jet prototype, which could
eventually help narrow the military gap with the United States, was not... 阅读全帖
p*********n
发帖数: 144
33
来自主题: Automobile版 - Forester Is a Standout In Latest Crash Test
如题
http://www.nytimes.com/2013/05/19/automobiles/2014-forester-get
The 2014 Subaru Forester was the only one of 13 compact crossovers and S.U.V
.’s to earn the highest rating in a new, more severe front crash test by
the Insurance Institute for Highway Safety. The new Forester was rated Good,
and the 2013 Mitsubishi Outlander Sport received the next-highest rating,
Acceptable.
The insurance institute, which is financed by the insurance industry, began
conducting the new test, called the small ov... 阅读全帖
l*********u
发帖数: 19053
34
来自主题: Automobile版 - zz IIHS crash tests show car size matters
实在看不下去无耻日托,硬拗基本物理定律。
Whenever you select a car to buy, you make tradeoffs. With a pickup, for
instance, you typically sacrifice ride comfort and ease of access for the
sake of utility. Similarly, when you pick a small car, you naturally expect
good fuel economy, maneuverability and a low price, for which you usually
forego passenger space, quietness and ride comfort. Intuitively, you know
you may also be compromising some crash safety.
It’s long been known that in a duel between a small, light v... 阅读全帖
H*M
发帖数: 1268
35
来自主题: JobHunting版 - testing的一些套路
之前在一些书上看到总结的,不同case, 不同应用,但是套路都差不多
或许会有用.
Black box testing: testing software without the knowledge of the back-end
White box testing: has knowledge of the back-end;
Unit testing: testing a particular part;
Integration testing: test more parts of the product as a whole;
Functional testing: verify the module functions as stated and make sure a
program does what it is supposed to do;
Regression testing: test the system with the intent of determining if bug
fixes have been successful and have not
z****e
发帖数: 16
36
Marvell Storage & Networking Group is looking for a full time engineer in
Firmware Development Engineer in Test, requirements and contact information
are listed below, anyone interested please go ahead apply. Thanks.
Qualifications
1. Minimum MS degree in Electrical Engineer, Computer Science or related
field.
2. Strong technical knowledge in software testing and detailed understanding
of software development processes.
3. Proficient with Linux/Windows and able to develop test scripts with Perl
... 阅读全帖
S******2
发帖数: 248
37
来自主题: JobHunting版 - 是不是做software test很没前途啊
分享一点我的经历和想法。
背景:第一份工作是software test engineer, 也算中大型公司。pay的也还好。只有
这一个offer,所以当初没想就去了。
干了两年,前一阵换了dev的工作。
test和在的公司和做的事情有很大关系,我之前就有很多时候manual testing,没有技
术含量。别的组test有的就很偏重dev方面的。这个区间比较大,和公司有很大关系。
不过单纯的manual testing确实没前途。
如果以后想转dev,那肯定是越早越好。test的经历这种时候不是很值钱了。test的岗
位也有很多,在seattle或者加州之类的地方,待遇和dev差不多,有差别的话,大公司
肯定也在一个合理的区间之内。
我的经验是,test也要加强编程和基本功,找相应的工作的话要多问一下具体是干什么
的。test还是很有用的,没有test的产品越来越垃圾了,基于本人切身工作经历。
title是一回事,做什么,其实更重要。
t*********p
发帖数: 44
38
Location : San Francisco Bay Area
Company Type: Commercial Bank
Contact: c***********[email protected]
Sponsor H1B
Job Summary:
The Stress Testing program, driven by Enterprise Risk Management, is part of
the risk management, capital adequacy and strategic planning processes of
the Bank and is an integral element of the Bank’s Internal Capital Adequacy
Assessment. The position will support the enterprise-wide stress testing
framework to estimate the likely impact of plausible scenarios on portfolio
cr... 阅读全帖
a*****g
发帖数: 19398
39
来自主题: Parenting版 - PARCC Shortens Its Common-Core Test
In the face of rising opposition to testing, the PARCC consortium has
decided to carve 90 minutes off its 10- to 11-hour-long assessment, and
shift the start of testing to later in the school year.
The redesign of the test was approved Wednesday in a unanimous phone-
conference vote by the board of governors of the Partnership for Assessment
of Readiness for College and Careers, or PARCC. Eleven states and the
District of Columbia belong to the consortium, which created tests aligned
to the Comm... 阅读全帖
L*******r
发帖数: 1011
40
1. Test Driven Programming:
One aspect of Extreme Progrgramming.(XP)
http://www-106.ibm.com/developerworks/java/library/j-xp042203/
Writing tests first
XP talks about two kinds of tests: programmer tests and customer tests.
Test-driven programming (also called test-first programming) most commonly
refers to the first variety, at least when I use the term. Test-driven
programming is letting programmer tests (or unit tests -- again, just a choice
of terms) drive the code you write. That means you
g**********y
发帖数: 14569
41
来自主题: Programming版 - 大家写unit test的时间会花多少?
Test-Driven Development (Kent Beck)
Refactoring (Martin Fowler), there is a chapter about test-driven dev. It's short but to the point. I learned a lot from that chapter, like:
- don't spend ages trying to write tests cover all areas
- the key to write test is think about features, guarantee those features are implemented as you thought
- a few good tests are better than thousands of marginal ones
- write tests where you have concern, where you cannot sleep well over it
...
When I worked for old... 阅读全帖
m******r
发帖数: 1904
42
☆─────────────────────────────────────☆
DUCK2008 (DUCK2008) 于 (Sat May 12 18:58:17 2012, 美东) 提到:
i have finished my cs just 2 hours ago.like my any test in the life, all i
feel is "done!", i can move to other part of my life again.
people on this website do share lots of information and we all benefit from
them. so i didn't feel any unexpectations. i haven't waste any part of my
practice before the exam. my performance was normal according to my
knowledge and level. i only had one case was ... 阅读全帖
A**H
发帖数: 4797
43
来自主题: Statistics版 - A t-test question
I have data like this
a: 17 2 2 3 3
b: 0 1 0 1 0
The t-test p-value = 0.16. Say this is test one.
If I change the data to the following:
a: 3 2 2 3 3
b: 0 1 0 1 0
The t-test p-value = 0.00022 (which is much smaller than test one.
According to the calculation of t-test, I understand why test one has larger
p-value, because (x-M)^2 becomes larger for test one, therefore t score
getting smaller.
However, this is somehow counterintuitive because the difference of mean
values between two groups in te... 阅读全帖
B******e
发帖数: 16928
44
来自主题: Military版 - CDC的test kit不靠谱
很可能不止15个case
CDC's coronavirus test kits still not ready to ship after some were
initially found to be faulty
From CNN’s Michael Nedelman
The US Centers for Disease Control and Prevention has not yet returned to
shipping coronavirus test kits to state labs after some tests were initially
found to be faulty, Dr. Nancy Messonnier, director of CDC’s National
Center for Immunization and Respiratory Diseases, said Friday during a call
with reporters.
The CDC wants to make sure that “every T is crosse... 阅读全帖
y*****g
发帖数: 1822
45
来自主题: QueerNews版 - Warning over HIV tests sold online
Illegal HIV test kits imported from China for sale online could give an
incorrect diagnosis, a Government health watchdog has warned.
The Medicines and Healthcare Products Regulatory Agency (MHRA) plans to shut
down six websites based in the UK which have sold kits without the
necessary CE quality mark.
The websites also sold non-compliant testing devices for other sexually
transmitted infections, including hepatitis, gonorrhoea, chlamydia and
syphilis. Almost 500 people have already b... 阅读全帖
G*****r
发帖数: 523
46
来自主题: Automobile版 - "New Crash Tests Curb High Scores" from WSJ
sonata 意外的强劲阿
Tougher government crash tests for the 2011 model year are making it harder
for car makers to win coveted "5-star" safety ratings for their vehicles,
which they widely tout in ads.
The U.S. Transportation Department on Tuesday formally launched a more
rigorous system for grading car safety. The new system for the first time
gives vehicles one overall safety rating, as well as various subratings,
with one star for the worst and five stars for the best.
The system, which applies to c... 阅读全帖
d*****3
发帖数: 167
47
来自主题: Automobile版 - SMOG Test被越南人坑了 (转载)
【 以下文字转载自 SanFrancisco 讨论区 】
发信人: dodo123 (dodo), 信区: SanFrancisco
标 题: SMOG Test被越南人坑了
发信站: BBS 未名空间站 (Sun Apr 6 19:10:27 2014, 美东)
昨天去SMOG test。本来去
AAA SMOG TEST ONLY
1389 El Camino Real, Santa Clara, CA 95050
结果刚停了车他旁边那家就钻出一个人应该是越南人要给做SMOG test,我还纳闷问你
们是一家吗。我要test only.他说他们忙的时候我就帮他们做。我也没在意,就做了。
做了SMOG之后告诉我HC高了。就是尾气不够环保超了10个点。让我花200到在他那里换
火花塞。nnd虽然我是老车,但是从来没有fail smog。最后收了我37刀,说下次要是过
了的话,再给8刀。我一想,这越南仔不是好人。我必须去test only station.他这里
肯定不是。
我自己这里去SMOG test之前就开了5分钟。 早知道应该在高速上跑个半小时,把车预
热好了。 现在绝对不想... 阅读全帖
N*****g
发帖数: 21
48
来自主题: Classified版 - Senior Software Test Engineer
【 以下文字转载自 JobMarket 讨论区 】
发信人: wangsaz (wangsaz), 信区: JobMarket
标 题: Senior Software Test Engineer
发信站: BBS 未名空间站 (Fri Mar 14 22:27:17 2014, 美东)
Title: Senior Software Test Engineer
Location Lake Forest, CA ( Southern California )
Job Description:
Lead medical device software verification and validation activities. Develop
automated test scripts in Ruby to test UI, communications and other system
components.
Must Have:
- Minimum 5 years of experience in software development and testing
- Bachel... 阅读全帖
N******r
发帖数: 284
49
Job Description - firmware support and test engineer:
Location: Piscataway, NJ
Contact: [email protected]
Job requirements
We are constantly looking for qualified and exceptional firmware
support/test engineer who will focus on testing firmware,
collaborating with other firmware and hardware engineers in the
design, development and utilization of firmware, performing execellant
problem trouble shooting skills. Candidate may act as a team or
project leader providing direction to team developmen... 阅读全帖
N*****g
发帖数: 21
50
来自主题: JobHunting版 - Senior Software Test Engineer
【 以下文字转载自 JobMarket 讨论区 】
发信人: wangsaz (wangsaz), 信区: JobMarket
标 题: Senior Software Test Engineer
发信站: BBS 未名空间站 (Fri Mar 14 22:27:17 2014, 美东)
Title: Senior Software Test Engineer
Location Lake Forest, CA ( Southern California )
Job Description:
Lead medical device software verification and validation activities. Develop
automated test scripts in Ruby to test UI, communications and other system
components.
Must Have:
- Minimum 5 years of experience in software development and testing
- Bachel... 阅读全帖
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