Ascale drawing of a kitchen is shown below. the scale is 1 : 20.

a rectangle is shown. the length of the rectangle is labeled 4 inches. the width of the rectangle is labeled 5 inches.

show your work to determine the area of the room in square feet.

(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.)