Do male and female school superintendents earn the same pay? Salaries for 20 males and 17 females in a certain metropolitan area are shown below. At α = .01, were the mean superintendent salaries greater for men than for women?
(a) State the hypotheses.
(b) State the decision rule and sketch it.
(c) Find the test statistic.
(d) Make a decision.
(e) Estimate Paycheck the p-value and interpret it.

School Superintendent Pay Men (n 20) Women (n 17) 114,000 115,024 115,598 108,400 109,900 120,352 118,000 108,209 110,000 151,008 121,421 112,187 110,160 128,322 128,041 125,462 113,611 123,814 111,280 112,280 94,675 123,484 99,703 86,000 108,000 94,940 83,933 102,181 86,840 85,000 96,000 112,455 120,118 124,163 76,340 89,600 91,993