Mr cold war is not when it comes to fractions: what the is 6/8×2/4×7/15=?

Answer! if you don’t mind, can you explain

(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.)

Who long does it take to drive 150 miles at 45 miles per hour