Consider the following sample data for the variables y and x: a. Calculate the linear regression equation

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Consider the following sample data for the variables y and x:

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a. Calculate the linear regression equation for these data.
b. Determine the predicted y -value when x = 10.
c. Estimate the change in the y variable resulting from the increase in the x variable of 10 units.
d. Conduct a hypothesis test to determine if an increase of 1 unit in the x variable will result in the decrease of the average value of the y variable. Use a significance of 0.025.
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Business Statistics A Decision Making Approach

ISBN: 9780133021844

9th Edition

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

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