14.52 Are You a Good Driver? How would you rate yourself as a driver? According to a...
Question:
14.52 Are You a Good Driver? How would you rate yourself as a driver? According to a survey, most Albertans think they are good drivers but have little respect for others' driving ability. The data show the distribution of opinions according to gender for two different questions, the first rating themselves as drivers and the second rating others as drivers. We assume that there were 100 men and 100 women in the surveyed group.
a. Is there sufficient evidence to indicate that there is a difference in the self-ratings between male and female drivers? Find the approximate p-value for the test.
b. Is there sufficient evidence to indicate that there is a difference in the ratings of other drivers between male and female drivers? Find the approximate p-value for the test.
c. Have any of the assumptions necessary for the anal- ysis used in parts a and b been violated? What affect might this have on the validity of your conclusions?
Step by Step Answer:
Introduction To Probability And Statistics
ISBN: 9780176509804
3rd Edition
Authors: William Mendenhall