Refer to Exercise 10.127.
a. Use the technology of your choice to obtain normal probability plots and box-plots for the two samples.
b. Is it reasonable to use the pooled t-test to perform the hypothesis test required in Exercise 10.127? Explain your answer.
c. Is it reasonable to use the Mann-Whitney test to perform the hypothesis test required in Exercise 10.127? Explain your answer.
Refer to Exercise 10.127,
The Bureau of Labor Statistics publishes data on weekly earnings of full-time wage and salary workers in Employment and Earnings. Independent random samples of male and female workers gave the data on weekly earnings, in dollars, found in the following table.

At the 5% significance level, do the data provide sufficient evidence to conclude that the median weekly earnings of male full-time wage and salary workers exceeds the median weekly earnings of female full-time wage and salary workers?

Transcribed Image Text:

Men Women 924 575 2078 358 2621 415 2193 374 1888 405 594 118 386 816 375 1445 510 412