The number of large versus small posters displayed by homeowners supporting the candidate Elena Martin. Posters of each type were sent to
homeowners supporting her in each of 10 districts. On average, supporters displayed 8.2 more small posters than large posters. The value of the o"^^ was 2.62.
a. What is the best point estimate for the difference in number of large versus small posters displayed by the next group of Elena Martin's supporters in the 10 districts?
b. In constructing an interval estimate for the difference in number of large versus small posters displayed by the next group of Elena Martin's supporters, what score will fall in the center of the interval?
c. Elena Martin can be 99% confident that the true difference in the number of posters displayed by any 100 supportive homeowners sent each type of poster falls between which two values?
For Information: Exercise 4 in Module 20 addressed.