A) give an example of two subsets a and b of (1,2,3) such that all of the following sets are b) write the elements of the set s-{ie z 1 x4-5x2 + 4-0). c) write the set s 12,3,5,7,11,13,17,19,23) in set builder notation.

(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.)