Explain hypothesis test, Basic Statistics

Assignment Help:

Oprah Winfrey endorsed Barack Obama in the Democratic presidential primary. Does Oprah's endorsement make a difference? If so, we would expect support for Obama to be higher among people who watch Oprah regularly than among people who don't. The table below gives data on watching Oprah and support for Barack Obama among a random sample of the U.S. population.

a)  Is there any evidence that Oprah's endorsement makes a difference (answer this part without conducting a hypothesis test)? Justify your answer by computing appropriate statistics.

b)  If there does appear to be an association between watching Oprah and supporting Obama, is this association statistically significant at the .05 level? Show all work.

 

 

Supports Obama?

 

 

Yes

No

Watches Oprah?

Yes

150

120

No

200

230

 

 


Related Discussions:- Explain hypothesis test

T accounts, if my income for the rest of the month was 2,500 and i recieved...

if my income for the rest of the month was 2,500 and i recieved 1,200 in cash balance on account where would i put this

Quota sampling, Quota Sampling: in stratified the cost of taking random sam...

Quota Sampling: in stratified the cost of taking random samples from individual strata is often so expensive that interviewers are simply give quota to be filled from different str

Index number, Why index numbers serve as economic barometers?

Why index numbers serve as economic barometers?

Change in the performance of the lamps between the dates, Q.2. (ii) A compa...

Q.2. (ii) A company making lamps has drawn a sample from its production line and measured the light output from each. The results, in microamps, are as follows: 9.1 9.8 9.5

Ransfer pricing, what are the different types of transfer pricing?

what are the different types of transfer pricing?

Sum, 3. In a management class of 100 students’ three languages are offered ...

3. In a management class of 100 students’ three languages are offered as an additional subject viz. Hindi, English and Kannada. There are 28 students taking Hindi, 26 taking Hindi

Convexity and concavity, Show that for a single-output technology, Y is con...

Show that for a single-output technology, Y is convex if and only if the production function f (z) is concave.

#titlelinear regression.., regression line drawn asY=C+1075x,when x was 2,a...

regression line drawn asY=C+1075x,when x was 2,and y was239,given that y intercept was11.calculate the residual.

Financial, on july 2,ali collected cash of Rs 700 from accounts receivable ...

on july 2,ali collected cash of Rs 700 from accounts receivable ,july 9 purchased gym equipments for 2175, paying 5500 in cash and charging the remainder on the company 30 day acco

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd