A student hourly employee does small secret arial projects. The number of projects she completes in a

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A student hourly employee does small secret arial projects.
The number of projects she completes in a day is the response variable y . The number of hours she works in a day is the predictor variable x .

(a) Calculate x̅, y̅, Sxx, Sxy, and SYY.
(b) Calculate the least squares estimates β̂0 and β̂1
(c) Determine the fitted line.
(d) Use the fitted line to give a point estimate of the predicted number of projects completed when she works 6.5 hours.

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Statistics Principles And Methods

ISBN: 9781119497110

8th Edition

Authors: Richard A. Johnson, Gouri K. Bhattacharyya

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