Refer to Example 12.12 in which x = test track speed and y = rolling test speed.
Question:
a. Minitab gave S 0 + 0 (45) = .120 and S 0 + 0 (47) = .186.
Why is the former estimated standard deviation smaller than the latter one?
b. Use the Minitab output from the example to calculate a 95% CI for expected rolling speed when test speed = 45.
c. Use the Minitab output to calculate a 95% PI for a single value of rolling speed when test speed = 47.
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Related Book For
Probability And Statistics For Engineering And The Sciences
ISBN: 9781305251809
9th Edition
Authors: Jay L. Devore
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