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

BALANCE SHEET , BALANCE SHEET A financial report that shows the resources,...

BALANCE SHEET A financial report that shows the resources, obligations, and stock of a business at a specified time frame in complying with usually recognized sales concepts (GAAP

Conditional probability, The U.S. Department of Transportation reported tha...

The U.S. Department of Transportation reported that during November, 83.4% of Southwest Airlines’ flights, 75.1% of US Airways’ flights, and 70.1% of JetBlue’s flights arrived on t

Cost accounting question, LO.1 (Activity analysis) The Raleigh plant manage...

LO.1 (Activity analysis) The Raleigh plant manager of Allentown Corp. has noticed the plant frequently changes the schedule on its production line. He has gathered the following in

Website needed, Where can I find statistics on how goal setting can help el...

Where can I find statistics on how goal setting can help elementary students?

Calculate profitability index of project, Your division has been allocated ...

Your division has been allocated $15M for capital projects for the coming year. You've been able to identify five potential projects, as outlined in the table below, each of which

How can do entry, mr.sunil join as a new business partner and borrowed rs. ...

mr.sunil join as a new business partner and borrowed rs. 850000 from ansul investment co. and depoisted the money into a uti bank account on 1-4-2006.

Probability, A bag contain 5 white, 7 red and 8 black balls. If four balls ...

A bag contain 5 white, 7 red and 8 black balls. If four balls are drawn one by one without Replacement, find the probability of getting all white balls.

Simple data analysis&comparison, Progect Guid: PROJECT 1: SIMPLE DATA ANA...

Progect Guid: PROJECT 1: SIMPLE DATA ANALYSIS & COMPARISON REPORT GUIDELINES This document contains general guidelines for the preparation of the Project Report I. Please note,

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