A man wants to beautify his front yard by plating four 20-foot-tall palm trees in his house. Each tree will need a cylindrical hole that is 34 inches in diameter and 28 inches deep to accommodate the roots. His trash heavier will only take away the excess dirt if it is in rectangular bags that are 2 feet by 1.5 feet by for feet. However, the man can only fill the bags on third if the way or they will be too heavy for him to move. How many bags will he have to buy so he can put all the dirt out for pickup?

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95