Mathematics, 18.06.2020 19:57 carafaith02

A recent survey indicated that the average amount spent for breakfast by business managers was $9.33 with a standard deviation of $0.24. It was felt that breakfasts on the East Coast were higher than $9.33. A sample of 81 business managers on the East Coast had an average breakfast cost of $9.41. At α=0.05, what is the test value?

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A recent survey indicated that the average amount spent for breakfast by business managers was $9.33...