Q1)a) What is meant by Predicted Regression Equation?
b) Is slope (b1) significant? How do you know? Describe. Test Hypothsis to show your answer.
c) Verify value of t for the independent Variable, using formula. (That is, using formula in the Formula Sheet compute the t statistic , given data provided in the print out).
d) Verify value of r2, by using the formula (In other word, CALCULATE r2). Table in next page below:
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SUMMARY OUTPUT
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Regression Statistics
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Multiple R
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0.494773102
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R Square
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0.244800422
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Adjusted R Square
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0.176145915
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Standard Error
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6.736122628
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Observations
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13
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ANOVA
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df
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SS
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MS
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F
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Significance F
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Regression
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1
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161.7942483
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161.7942
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3.565686
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0.085628
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Residual
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11
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499.1288286
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45.37535
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Total
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12
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660.9230769
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Coefficients
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Standard Error
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t Stat
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P-value
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Intercept
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15.77804985
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2.074123756
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7.607092
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1.05E-05
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X
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-0.105811713
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0.056035363
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-1.8883
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0.085628
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