Mathematics, 30.05.2020 03:01 lescoto9035

A family restaurant claims that the average family of 4 can enjoy a meal far $100 or less. One night, 65 families of 4 ate at the restaurant and the average amount spent was $96 with a standard deviation of $21. With a=0.05, do yau have endugh evidence to reject the restaurant's claim?

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A family restaurant claims that the average family of 4 can enjoy a meal far $100 or less. One night...

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