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At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, You can average $71 a day in
At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, You can average $71 a day in tips. Assume the population of daily tips is normally distributed with a standard deviation of $4.48. Over the first 33 days she was employed at the restaurant, the mean daily amount of her tips was $73.33. At the 0.05 significance level, can Ms. Brigden conclude that her daily tips average more than $71? |
a. | State the null hypothesis and the alternate hypothesis. | ||||
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b. | State the decision rule. | ||||
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c. | Compute the value of the test statistic. (Round your answer to 2 decimal places.) |
Value of the test statistic |
d. | What is your decision regarding H0? | ||
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e. | What is the p-value? (Round your answer to 4 decimal places.) |
p-value |
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