Chris wanta to enclose his circular vegetable garden with fencing to keep rabbits from eating his vegetables. if the diameter of her garden is 18 feet, how much fencing is he going to need to buy if its sold by the linear foot? show your work.

(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.)