A man would like to estimate the diameter of watermelons that are currently in the grocery store. The clerk has specified that the watermelons are supposed to have a population mean diameter of 7.3 inches. and a standard deviation equal to .04 inches. A random sample of 25 selected from shipment indicates a sample average of 7.33 inches. At the 95% level of confidence, does the store need to find a different supplier? (Please show all work)
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