In a large American university in 1969, the male and female professors were sample independently, yielding the following annual salaries (in thousand of dollars):
|
Male
|
Female
|
|
9
|
12
|
|
10
|
11
|
|
6
|
17
|
|
10
|
16
|
|
14
|
20
|
Test if there was wage discrimination among gender using the following methods: Assume 5% level of significance.
(a) ANOVA
(b) Two population t-test.
(c) Are the two methods yield different conclusion? Why or Why not?