Refer to the data for problem 1.
a. Find the F statistic and its numbers of degrees of freedom.
b. Interpret the F statistic in terms of how many times more volatile one source of variability is than another.
c. Find the critical value from the F table at the 5% level.
d. Report the result of the F test at the 5% level.
e. Summarize what this test has told you about any differences among these ads for consumers in general in this city.