Evan takes 100 milligrams of medicine. the amount of medicine in his bloodstream decreases by 0.4 milligram each minute for a number of minutes, m, after that. he writes the expression 100 – 0.4m to find the amount of medicine in his bloodstream after m minutes. which statement about his expression is true?

(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.)