Shown below is a portion of an Excel output for regression analysis relating
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Shown below is a portion of an Excel output for regression analysis relating

Question 9

Shown below is a portion of an Excel output for regression analysis relating Y (dependent variable) and X (independent variable).

ANOVA

 

 

df

SS

 

Regression

1

3348.312

 

Residual

8

9529.811

 

Total

9

12878.123

 

 

 

Coefficients

Standard Error

t Stat

P-value

Intercept

247.56

83.280

1.689

0.030

 

X

148.62

38.312

1.283

0.075

 

1. What is the estimated regression equation that relates y to x?

2. Is the regression relationship significant? Use a p-value and alpha = 0.05.

3. What is the estimated value of y if x = 3.5?

4. Compute the value of the coefficient of determination and interpret its meaning. Be very specific.

Hint
Statistics"ANOVA test is a way to find out if the survey or the experiment results are significant and they help to figure out if there is a need to reject the null hypothesis or accept the alternate hypothesis. Basically, the groups are being tested to see if there’s a difference between them. ANOVA is basically an analysis tool which is used in that statistics that splits an observed aggregate v...
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