Sharon , a city in Northwestern Pennsylvania, is well-known for it’s world’s largest selection of stores—these include Reyer’s Shoes, The Winner ( clothing), Daffin’s Candy etc. During the heyday of Sharon’s history when steel mills were flourishing and people came to Sharon to shop, the city also flourished—especially the above mentioned stores. It has been estimated that the number of shoppers in the stores in those days was, on average, 6,250 per day with a stdev of 1,230 depending on weather, holidays etc. Sally, Sharon’s historian claims that that number should be HIGHER ( than 6250) and she has a sample mean of 7,000. Test Sally’s claim by answering the questions that follow—use a 90% confidence level and sample size of 16 days.
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