Consider the model where x1 is a quantitative variable and x2 and x3 are dummy variables describing a qualitative variable at three levels, using the coding scheme The resulting least squares prediction equation is a What is the response line (equation) for E ( y ) when x2 x3 0 When x2 1 and x3 0 W...

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Consider the model where x1 is a quantitative variable and x2 and x3 are dummy variables describing

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Consider the model

where x1 is a quantitative variable and x2 and x3 are dummy variables describing a qualitative variable at three levels, using the coding scheme

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The resulting least squares prediction equation is

a. What is the response line (equation) for E ( y ) when x2 = x3 = 0? When x2 = 1 and x3 = 0? When x2 = 0 and x3 = 1?

b. What is the least squares prediction equation associated with level 1? Level 2? Level 3? Plot these on the same graph.

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Statistics

ISBN: 9781292022659

12th International Edition

Authors: James T Mcclave, Terry Sincich

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Question Posted: Sep 20, 2024 05:04 AM

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Consider the model where x1 is a quantitative variable and x2 and x3 are dummy variables describing

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y = Bo+B1x1 + B2x2 + B3x3 +

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