Tiana uploaded 150 songs from her computer to her cell phone. These songs took up 300 megabytes of space on her phone. Each song took up the same amount of space.
How many megabytes do 25 of these songs take up?

(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.)