Thermal endurance tests were performed to study the relationship between temperature and lifetime of polyester enameled wire
Question:
a. Does a scatterplot of the data suggest a linear probabilistic relationship between lifetime and temperature?
b. What model is implied by a linear relationship between expected ln(lifetime) and 1/temperature? Does a scatterplot of the transformed data appear consistent with this relationship?
c. Estimate the parameters of the model suggested in part (b). What lifetime would you predict for a temperature of 220?
d. Because there are multiple observations at each x value, the method in Exercise 14 can be used to test the null hypothesis that states that the model suggested in part (b) is correct. Carry out the test at level .01.
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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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