Aresearcher who is studying social media habits chose 900 snapmode users at random at the beginning of 2016. of these users, 82% said they sent at least three snaps a day. however, snapmode executives say 63% of users sent at least three snaps a day. which of the following statements 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.)