Nursing Homework Help in USA

Question

A scientific study on construction delays gives the following data table.

Construction delay (hours) Increased cost ($1000)
51 104
55 103
58 89
61 56
63 52

Using technology, it was determined that the total sum of squares (SST) was 2542.8, the sum of squares regression (SSR) was 2194.8, and the sum of squares due to error (SSE) was 347.99. Calculate R2 and determine its meaning. Round your answer to four decimal places.


Select the correct answer below:


R2=0.8631

Therefore, 86.31% of the variation in the observed y-values can be explained by the estimated regression equation.

R2=1.1586

Therefore, 1.1586% of the variation in the observed y-values can be explained by the estimated regression equation.

R2=0.1369

Therefore, 13.69% of the variation in the observed y-values can be explained by the estimated regression equation.

R2=0.1586

Therefore, 15.86% of the variation in the observed y-values can be explained by the estimated regression equation.

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