Statistics: Regression Analysis
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Problem Data
Service Time Data
x y
Calls
Copiers Minutes
1 4 109
2 2 58
3 5 138
4 7 189
5 1 37
6 3 82
7 4 103
8 5 134
9 2 68
10 4 112
11 6 154
I need:
Estimate unknown model parameters
The Least Squares Point Estimates
Residual Analysis
Constant Variance Assumptions
Assumption of Correct Functional Form
Independence Assumption
Normality Assumption
Evaluate Model
Testing Significance of Slope and y-Intercept (T Tests)
An F Test for the Simple Linear Regression Model
The Coefficient of Determination and Correlation
Use Model for Prediction & Estimation
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Solution Summary
The correlation for service call data for copiers in minutes. A complete, neat and step-by-step solution is provided in the attached Excel file.
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