Troy is searching for a new home. he’ll need to take out a mortgage once he finds a house. before visiting the bank, troy decides to check his credit score on his credit report. to troy’s surprise, his score was much lower than he thought. he also discovered that there were two credit card accounts he didn’t recognize. troy could have been a victim of , and he should check his more often to avoid being surprised in the future.

(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.)