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jwalker824 jwalker824
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A month ago
Use the following to answer the questions below:

A small university is concerned with monitoring the electricity usage in its Student Center, and its officials want to better understand what influences the amount of electricity used on a given day. They collected data on the amount of electricity used in the Student Center each day and the daily high temperature for nearly a year. They also made note of whether each day was a weekend or not (1 = Saturday/Sunday and 0 = Monday - Friday). Regression output is provided.

Helpful notes: 1) Electricity usage is measured in kilowatt hours, 2) During the cold months, the Student Center is heated by gas, not electricity, and 3) Air conditioning the building during the warm months does use electricity.

The regression equation is Electricity = 83.6 + 0.529 High Temp - 25.2 Weekend

PredictorCoefSE CoefTP
Constant83.5604.23819.720.000
High Temp 0.529180.070207.540.000
Weekend-25.1683.724 -6.76 0.000
S = 29.8162   R-Sq = 24.7%   R-Sq(adj) = 24.2%

Analysis of Variance

SourceDFSSMSFP
Regression2904814524150.890.000
Residual Error310275592889
Total312366073

Interpret R2 for this model.
Textbook 
Statistics: Unlocking the Power of Data

Statistics: Unlocking the Power of Data


Edition: 3rd
Authors:
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chemcalchemcal
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