Question: Michael Smith has been tasked with determining the size of a major tire manufacturer's retail tire inventories. After sampling 120 of the manufacturer's retailers, he

Michael Smith has been tasked with determining the size of a major tire manufacturer's retail tire inventories. After sampling 120 of the manufacturer's retailers, he discovered the mean to be 310 tires. The industry average is 325 tires. Discuss if the manufacturer's inventory level is considerably different from the industry norm if the standard deviation for the sample was 72. Explain why, using a 95% confidence interval. Would your answer change if you used a 99% confidence interval?

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