Suppose that we are interested in fitting a simple linear regression model Y = B0 + B1x
Question:
(a) Find the least squares estimator of B1.
(b) What is the variance of the estimator of the slope in part (a)?
(c) Find an expression for a 100(1 – a)% confidence interval for the slope B1. Is this interval longer than the corresponding interval for the case where both the intercept and slope are unknown? Justify your answer.
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Step by Step Answer:
a 2 il Upon setting the derivative to zero we obtain 6 ...View the full answer
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Jehal Shah
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Related Book For 
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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