A spider moves down from the ceiling at 6.5 inches per minute for 4 minutes. Then it moves up at 4.2 inches per minute for 3 minutes. It will take the spider 5 minutes to get back to the ceiling. What is its speed for the last 5 minutes?

(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.)