How many unstable pairs are present in the matching indicated by the asterisks? Note that if PP is the set of proposing men and AA is the set of accepting women, then a pair is of the form (p, a)(p, a) such that p∈P and a∈A. As such, every man/woman pair only counts as a single pair, i. e. (Chad, Becky) counts as a pair but (Becky, Chad) does not.

(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.)