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 x, y, S xx , S xy , and S YY (b) Calculate the least squares estimates 0 and 1 (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 x 2 3 3 2 10 10 5 5 7 8 7 8

Question: A student hourly employee does small secret arial projects. The number of projects she completes in a day is the response variable y . The

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 .

x 2 3 3 2 10 10 5 5 7 8 7

(a) Calculate x̅, y̅, S_xx, S_xy, and S_YY.
(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.

x 2 3 3 2 10 10 5 5 7 8 7 8

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