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

Calculate the predicted mean temperature, The following are actual data sho...

The following are actual data showing the latitude of a sample of major cities in the northern hemisphere and their mean high annual temperature. latitude(X)    mean high temp(Y

Describe the assumptions conducting test, Conduct a test to determine if th...

Conduct a test to determine if the proportion of males that responded true to the statement in the survey that, "Whole foods (i.e. raw vegetables and meats) contain sodium," is dif

FIFO, how to figure out cost of good available for sale, cost of sales, end...

how to figure out cost of good available for sale, cost of sales, ending inventory

Project, The trial balance of the Parton Wholesale Company contained the fo...

The trial balance of the Parton Wholesale Company contained the following accounts at December 31, 2010 the end of the company’s calendar year. PARTON WHOLESALE COMPANY Trial Bala

Automated clearing house (ach) , Automated clearing house (ach) A across ...

Automated clearing house (ach) A across the country settlement and selection program that provides for automated submission and arrangement of resources. Although the phrase Elec

Student, Design an activity based cost system requires that: a) the job bid...

Design an activity based cost system requires that: a) the job bid process redesigned b) resource costs be linked to the activities performed c)the cost of activities be linked to

Accounting is an art of recording, Accounting is an art of recording Yes...

Accounting is an art of recording Yes, we recognize upon that declaration because if we evaluate the primary features of the accounting program we will find that primary three p

Correlation, difference between positive and negative correlaiton

difference between positive and negative correlaiton

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