The data from a survey on the academic degrees earned by students in the united states in 2009 is shown below.
degree
male
(in thousands)
female
(in thousands)
marginal
totals
associate
298 489 787
bachelor
685 916 1,601
master
260 397 657
professional
47 45 92
doctorate
32 35 67
marginal
totals
1,322 1,882 3,204
what is the relative frequency of male students earning an associate’s degree among all the males earning any degree in 2009?
0.09
0.23
0.38
0.44

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)