Carrie started at the southeast corner of
Franklin Park, walked north 240 yards, turned
and walked west 80 yards, and then turned and
walked diagonally back to where she started.
What is the area of the triangle enclosed by the
path she walked?

(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.)