The distance from earth to the moon is approximately 2.48 × 105 miles. what is this distance in standard form?
a. 24,800,000 miles
b. 24,800 miles
c. 248,000 miles
d. 2,480,000 miles

(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.)