Strength (hs in)
Brand
Do you agree with this claim? Why or why not?
a. Yes, because the bar for Brand Z is twice as tall as the bar for Brand X
b. Yes, because the strength of Brand Z is twice that of Brand X
C. No, because paper towel brands are all alike.
d No, because the vertical scale exaggerates the differences between brands

(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.)