For a Null Hypothesis that 5.5 equals the mean, what decision would you make?

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answerhappygod
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For a Null Hypothesis that 5.5 equals the mean, what decision would you make?

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Determine whether the population mean waiting time to place an order at your restaurant has changed in the past month from its previous population mean of 5.5 minutes. Assume the population is normally distributed, but that the standard deviation is unknown. You select a sample of 50 orders during a one-hour period. Sample mean = 5.0 minutes and sample standard deviation = 1.4 minutes.

For a Null Hypothesis that 5.5 equals the mean, what decision would you make?


should reject the null hypothesis
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