Business, 26.04.2021 21:30, xxxharveyweinsteinxx
At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, “You can average $84 a day in tips.” Assume the population of daily tips is normally distributed with a standard deviation of $3.51. Over the first 46 days she was employed at the restaurant, the mean daily amount of her tips was $86.54. At the 0.10 significance level, can Ms. Brigden conclude that her daily tips average more than $84?
a. State the null hypothesis and the alternate hypothesis.
multiple choice 1
H0: μ ≥ 84; H1: μ < 84
H0: μ >84; H1: μ = 84
H0: μ ≤ 84; H1: μ > 84
H0: μ = 84; H1: μ ≠ 84
b. State the decision rule.
multiple choice 2
Reject H0 if z > 1.28
Reject H1 if z < 1.28
Reject H1 if z > 1.28
Reject H0 if z < 1.28
c. Compute the value of the test statistic. (Round your answer to 2 decimal places.)
Answers: 2
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At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, “You...
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