as shown suzi starts her hike at an elevation below sea level. when she reaches the end of the hike she is still below sea level at 100 feet. what was the change in elevation from the beginning of suzi's hike to the end of the hike?

(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.)