At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was

Asked by pankaj
Dated: 15th May'18 08:17 AM
Bounty offered: $10.00

1. 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?


4. Refer to the Buena School District bus data.

a. Select the variable for the number of miles traveled last month. Conduct a test of

hypothesis to determine whether the mean number of miles traveled is equal to 840.

Use the .01 significance level. Find the p-value and explain what it means.

b. Using the maintenance cost variable, conduct a test of hypothesis to determine whether

the mean maintenance cost is less than $500 at the .05 significance level. Determine the

p-value and interpret the result.

At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was
Answered by pankaj
Expert Rating: 364 Ratings
Dated: 15th May'18 08:17 AM
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attachments

RS-Buena-School-District-Bus-Data-(10)-(1).xls (1863 KB) Grumney_Family_Restaurant.xlsx (16.28 KB)
Preview of Grumney_Family_Restaurant.xlsx
level,Null     Ms   conclude that     tips       $80?Level   SignificancePopulation Standard     can       daily   are above