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4 Exercise 14-15 Algo 6.25 In a multiple regression, the following sample regression equation is obtained: points y = 149 + 12.1x1 + 2.5x2- a.

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4 Exercise 14-15 Algo 6.25 In a multiple regression, the following sample regression equation is obtained: points y = 149 + 12.1x1 + 2.5x2- a. Predict y if x1 equals 19 and x2 equals 30. (Round your answer to 1 decimal place.) b. Interpret the slope coefficient of x1

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