question archive The owner of a specialty coffee shop wants to study the coffee purchasing habits of customers in her shop

The owner of a specialty coffee shop wants to study the coffee purchasing habits of customers in her shop

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The owner of a specialty coffee shop wants to study the coffee purchasing habits of customers in her shop. During a certain week, she selects a random sample of 20, with the following results: 0 The amount spent was i = $10.25, 5 = $2.75 0 11 customers say they will definitely recommend the coffee shop to family and friends. a. At the 0.05 level of signi?cance, is there sufficient evidence that the population mean amount spent was significantly different from 59.50. i. State the hypotheses. ii. Calculate the critical vale fort iii. Calculate the value of the test statistic iv. Make a decision regarding the hypothesis and state what this means in context.

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