Question
Use the data in the Mod8-2Data file to answer the following questions. The data contains information from a car seat manufacturer on the age of
Use the data in the Mod8-2Data file to answer the following questions. The data contains information from a car seat manufacturer on the age of machine (in months) and the cost of repairs (in 10s of $). Run the regression in Minitab and show the regression line on a scatter plot. Assume a level of significance of 5%.
Age | Repairs10 |
110 | 32.767 |
113 | 37.668 |
114 | 39.252 |
134 | 44.314 |
93 | 34.262 |
141 | 47.616 |
115 | 32.474 |
115 | 33.898 |
115 | 43.345 |
142 | 52.637 |
96 | 36.242 |
139 | 44.876 |
89 | 33.527 |
93 | 35.094 |
91 | 29.181 |
109 | 46.78 |
138 | 47.448 |
83 | 35.415 |
100 | 42.011 |
137 | 41.604 |
What is the table test statistics for the test on the slope/coefficient on "AGE"?
What is the p-value for the test on the slope/coefficient on "AGE"?
Calculate the 95% (confidence) interval for the slope on "AGE". Round to 2 decimal places. Provide the lower bound and the upper bound and provide a leading zero in your answer. For example, 0.87.
Predict repair cost for a machine that is 100 months old. Round to the nearest whole dollar.
Interpret the 95% Prediction Interval for a machine that is 100 months old.
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