{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

hw03 - affiliation of those surveyed(you only survey...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
06E:071, Fall 2011 due Sep. 20 Homework 3 1. Which test statistic do you use for the following two hypotheses? Write the null and alternative hypotheses for each problem and the test statistic you would use if you had ˆ p 1 , ˆ p 2 , n 1 and n 2 . Write out the test statistics as completely as possible (i.e., including the information from the hypotheses). (a) You survey citizens of Iowa City to find whether they approve of the new jobs bill proposed by the office of the President (respondents answer yes or no). You also note the party affiliation of those surveyed (you only survey people who identify themselves as Democrats or Republicans). You would like to test: does a higher proportion of Democrats approve of the bill than Republicans? (b) You survey citizens of Iowa City to find whether they approve of the new jobs bill proposed by the office of the President (respondents answer yes or no).
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: affiliation of those surveyed (you only survey people who identify themselves as Democrats or Republicans). You would like to test: does the proportion of Democrats who approve of the bill exceed that of approving Republicans by 10%? Show your work (i.e., do it by hand) for the next question. Question 3 can also easily be done by hand, but you can use a computer program to conduct tests after question 2, as long as you state the results of the test clearly — including test statistic, p-value and the decision you make in plain English. Questions 4 and 5 can be done by hand but it is easier to use a computer. 2. Exercise 9.24 (p. 559). Do this one by hand and show all your work. 3. Exercise 9.34 (p. 561). 4. Exercise 9.16 (p. 557). 5. Exercise 9.23 (p. 559). 1...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern