Question: Reconsider the semiconductor data in Exercise 12-9. (a) Test for significance of regression using a = 0.05. What conclusions can you draw? (b) Calculate the

Reconsider the semiconductor data in Exercise 12-9.
(a) Test for significance of regression using a = 0.05. What conclusions can you draw?
(b) Calculate the t-test statistic for each regression coefficient. Using a = 0.05, what conclusions can you draw?

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