This question has two parts please answer :)

Assigned Media v. , QuestIOn Help. A point manufacturer uses a machine to ll gallon cans with paint (1 gal= 128 ounces). The manufacturer wants to estimate the mean volume of paint the machine is putting In the cans within 0 .4 ounce. Assume the population of volumes Is normally distributed. (a) Determine the minimum sample size required to construct a 90% condence Interval for the population mean. Assume the population standard deviation in 0 51 ounce. w (b) The sample mean is 127 25 ounces. Vith a sample size cl 14. a 90% level of condence. and a population standard deviation of 0. 81 ounce. does it seem possible ' that the population mean could be exactly 128 ounces? Explain. - ' WWW WW (:3) The minimum sample size required to construct a 90% condence interval is I] cans. (Round up to the nearest whole number.)