A sporting goods store believes the average age of its customers is 40 or less. A random sample of 48 customers was surv

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A sporting goods store believes the average age of its customers is 40 or less. A random sample of 48 customers was surv

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A Sporting Goods Store Believes The Average Age Of Its Customers Is 40 Or Less A Random Sample Of 48 Customers Was Surv 1
A Sporting Goods Store Believes The Average Age Of Its Customers Is 40 Or Less A Random Sample Of 48 Customers Was Surv 1 (18.42 KiB) Viewed 103 times
A sporting goods store believes the average age of its customers is 40 or less. A random sample of 48 customers was surveyed, and the average customer age was found to be 42.7 years. Assume the standard deviation for customer age is 9.0 years. Using a=0.10, complete parts a and b below. a. Does the sample provide enough evidence to refute the age claim made by the sporting goods store? Determine the null and alternative hypotheses. Но р H:
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