Reconsider the filtration ratemoisture content dataintroduced in Example 12.6 (see also
Chapter 12, Problem 45(choose chapter or problem)
Reconsider the filtration ratemoisture content dataintroduced in Example 12.6 (see also Example 12.7).a. Compute a 90% CI for b0 1 125b1, true averagemoisture content when the filtration rate is 125.b. Predict the value of moisture content for a singleexperimental run in which the filtration rate is 125using a 90% prediction level. How does this intervalcompare to the interval of part (a)? Why is this thecase?c. How would the intervals of parts (a) and (b) compareto a CI and PI when filtration rate is 115? Answerwithout actually calculating these new intervals.d. Interpret the hypotheses H0: b0 1 125b1 5 80 andHa: b0 1 125b1 , 80, and then carry out a test atsignificance level .01
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