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
|
|
12
|
9
|
|
11
|
12
|
|
19
|
8
|
|
16
|
10
|
|
22
|
16
|
Test if there was wage discrimination among gender. Assume 5% level of significance.