A paint manufacturer uses a machine to fill gallon cans with

Last updated: 3/30/2024

A paint manufacturer uses a machine to fill 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 7 ounce Assume the population of volumes is normally distributed a Determine the minimum sample size required to construct a 90 confidence interval for the population mean Assume the population standard deviation is 0 80 ounce b The sample mean is 127 ounces With a sample size of 5 a 90 level of confidence and a population standard deviation of 0 80 ounce does it seem possible that the population mean could be exactly 128 ounces Explain Click here to view page 1 of the Standard Normal Table Click here to view page 2 of the Standard Normal Table a The minimum sample size required to construct a 90 confidence interval is cans Round up to the nearest whole number b The 90 confidence interval for a sample size of 5 is mean could be exactly 128 ounces because 128 ounces falls Round to two decimal places as needed seem possible that the population erval does