Question: At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, You can average $80 a day in

At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, “You can average $80 a day in tips.” Assume the population of daily tips is normally distributed with a standard deviation of $9.95. Over the first 35 days she was employed at the restaurant, the mean daily amount of her tips was $84.85. At the .01 significance level, can Ms. Brigden conclude that her daily tips average more than $80?

(a) State the null hypothesis and the alternate hypothesis.

(b) State the decision rule.

(d) What is your decision regarding H0?

(e) What is the p-value? Interpret it.

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