Iknow there will be a difference between the real answer and the estimated answer but the problem is i do not know how to someone pls ? thks a lot and the answer is correct right?

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

(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.)