When estimating a multiple linear regression model based on 30 observations, the following results were obtained.

a. Specify the hypotheses to determine whether x1 is linearly related to y. At the 5% significance level, use the p-value approach to complete the test. Are x1 and y linearly related?
b. What is the 95% confidence interval for β2 ? Using this confidence interval, is x2 significant in explaining y? Explain.
c. At the 5% significance level, can you conclude that β1 is less than 20? Show the relevant steps of the appropriate hypothesistest.

  • CreatedJanuary 28, 2015
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