15%) A potato chips manufacture manager claims that each box of its potato chips has a mean weight of 250 grams with a standard deviation of 6 grams. A quality control executive wants to know if the current packing process meets the 250 grams weight standard. A sample of 64 boxes was taken from the production. Construct a 90% confidence interval estimate for the population mean of potato chips box Construct a 99% confidence interval estimate for the population mean of potato chips box What is the implication based on the results of (2a) and (2b) for the manufacturer, which confidence interval should be used to increase customer satisfaction? Explain your reason