Pablo drove 23.1 miles to his aunt’s house, then drove 19.24 miles to his friend’s house. which estimate can pablo use to determine the distance he drove altogether? 2 + 19 = 21 miles 23 + 19 = 42 miles 23 + 192 = 215 miles 231 + 1924 = 2155 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.)