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This figure shows an estimated linear equation with 95% prediction intervals. Assume that the units of X and Y are

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This figure shows an estimated linear equation with 95% prediction intervals. Assume that the units of X and Y are dollars.
This figure shows an estimated linear equation with 95% prediction

(a) Visually estimate the intercept b0 and the slope b1.
(b) Is se (b1) less than 1, about 1, or more than 1?
(c) Is r2 approximately 0.3, 0.5, or 0.8?
(d) Estimate se, the standard deviation of the residuals.

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500 450 400 350 300 250 200 150 100 50 O 20 40 60 80 100 120 140 160 180

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a b 0 100 and b 1 2 Estimate the intercept by where the line hits the y axis For the slope notice …View the full answer


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Statistics For Business Decision Making And Analysis

Statistics For Business Decision Making And Analysis

ISBN: 9780321890269

2nd Edition

Authors: Robert Stine, Dean Foster

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Question Posted: July 14, 2015 09:45:04
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