D& T LTD marketing team needed more information about the...

D& T LTD marketing team needed more information about the effectiveness of their 3 main mode of advertising. To determine which type is the most effective, the manager collected one week's data from 25 randomly selected stores. For each store, the following variables were recorded:

Weekly gross sales

Weekly expenditure on direct mailing (Direct)

Weekly expenditure on newspaper advertising (Newspaper)

Weekly expenditure on television commercials (Television)

Following is the regression output based on the above-mentioned data.

SUMMARY OUTPUT

Regression Statistics

Multiple R

R Square

Adjusted R Square Standard Error Observations

ANOVA

0.442

A

0.080 2.587 25

Df

           SS MS F

Significance F

0.1979

Lower 95%

2.54 -3.01 0.12 -3.34

    Regression B 34.1036 Residual 21 D Total C 174.6631

Standard Coefficients Error

Intercept 12.31 4.70 Direct 0.57 1.72 Newspaper 3.32 1.54 T elevision G 1.96

E

6.6933

t Stat

2.62

H

2.16 0.37

F

            P- value

0.02 0.74 0.04 0.71

1.       Complete the missing entries from A to H in this
2. Assess the independent variables significance at
3. Does the model is significant at 5% level?

output 5% level

(2 marks) (3 marks) (2 marks)