Tensen Tire & Auto IS in the process of deciding whether machine. Managers feel that maintenance expense should be related to usage, and they collected the following information on weekly usage (hours) and annual maintenance expense (in hundreds of dollars). Weekly Usage Annual (hours) Maintenance Expense 16 18 13 23 23 31 31 38 35 48 20 32 27 34 34 40 43 53 41 41 a. Develop the estimated regression equation that relates annual maintenance expense (in hundreds to weekly usage hours (to 3 decimals). Expense Weekly Usage b. Test the significance of the relationship in part (a) at a 0.05 level of significance.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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3

41
41
a. Develop the estimated regression equation that relates annual maintenance expense (in hundreds of dollars) to weekly usage hours (to 3
decimals).
Expense
Weekly Usage
b. Test the significance of the relationship in part (a) at a 0.05 level of significance.
Compute the value of the F test statistic (to 2 decimals).
The p value is
- Select your answer -
What is your conclusion?
Select your answer -
C. Jensen expects the new machine to be used 30 hours per week. What is the expected annual maintenance expense in hundreds of dollars (to
2 decimals)?
hundred
Develop a 95% prediction interval for the company's annual maintenance expense for this machine (to 2 decimals).
(S
hundred, s
hundred )
d. If the maintenance contract costs $3000 per year, would you recommend purchasing the contract for the new machine in part (c)? Why or why
not?
Select your answer-
Transcribed Image Text:41 41 a. Develop the estimated regression equation that relates annual maintenance expense (in hundreds of dollars) to weekly usage hours (to 3 decimals). Expense Weekly Usage b. Test the significance of the relationship in part (a) at a 0.05 level of significance. Compute the value of the F test statistic (to 2 decimals). The p value is - Select your answer - What is your conclusion? Select your answer - C. Jensen expects the new machine to be used 30 hours per week. What is the expected annual maintenance expense in hundreds of dollars (to 2 decimals)? hundred Develop a 95% prediction interval for the company's annual maintenance expense for this machine (to 2 decimals). (S hundred, s hundred ) d. If the maintenance contract costs $3000 per year, would you recommend purchasing the contract for the new machine in part (c)? Why or why not? Select your answer-
Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its new computer wheel alignment and balancing
machine. Managers feel that maintenance expense should be related to usage, and they collected the following information on weekly usage
(hours) and annual maintenance expense (in hundreds of dollars).
Weekly Usage
Annual
(hours)
Maintenance Expense
16
18
13
23
23
31
31
38
35
48
20
32
27
34
34
40
43
53
41
41
a. Develop the estimated regression eguation that relates annual maintenance expense (in hundreds of dollars) to weekly usage hours (to 3
decimals).
Expense
Weekly Usage
b. Test the significance of the relationship in part (a) at a 0.05 level of significance.
Compute the value of the F test statistic to 2 decinals).
Transcribed Image Text:Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its new computer wheel alignment and balancing machine. Managers feel that maintenance expense should be related to usage, and they collected the following information on weekly usage (hours) and annual maintenance expense (in hundreds of dollars). Weekly Usage Annual (hours) Maintenance Expense 16 18 13 23 23 31 31 38 35 48 20 32 27 34 34 40 43 53 41 41 a. Develop the estimated regression eguation that relates annual maintenance expense (in hundreds of dollars) to weekly usage hours (to 3 decimals). Expense Weekly Usage b. Test the significance of the relationship in part (a) at a 0.05 level of significance. Compute the value of the F test statistic to 2 decinals).
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