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An experiment was conducted and the data obtained were used to fit the multiple linear regression…


An experiment was conducted and the data obtained were used to fit the multiple linear regression model An experiment was conducted and the data obtained were used to fit the multiple linear regression... Minitab was used to estimate the regression coefficients, and the output is shown below.

An experiment was conducted and the data obtained were used to fit the multiple linear regression...

a. Is the overall regression significant? Conduct the appropriate hypothesis test and justify your answer. b. Conduct four hypothesis tests with H0: bi = 0 for i = 1, 2, 3, 4 and a = 0.05 in each test. Which regression coefficients are significantly different from 0, and therefore, which predictor variables are significant?

c. Conduct four hypothesis tests with H0: bi = 0 for i = 1, 2, 3, 4 with an overall type I error of a = 0.05. Using these results, which predictor variables are significant? Compare your answers in parts (b) and (c).