Simple Regression 2. A CEO of a large plastics manufacturing company would like to determine if she should be placing more money allotted in the budget next year for television advertising of a new...

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Answered Same DayDec 23, 2021

Answer To: Simple Regression 2. A CEO of a large plastics manufacturing company would like to determine if she...

Robert answered on Dec 23 2021
119 Votes
2. a) Scatter Plot of Number of orders v/s Advertising cost is given below:
Correlation coefficient
between number of orders and advertising cost is 0.399 which can be
considered to be very low since it is even less than 0.5. Thus through this one can say that the
relationship between amount of money spent on advertising and number of orders is not very
strong.
b) On fitting a Regression with advertising cost as dependent variable and number of orders as
independent variables we get following results:
Regression Statistics
Multiple R 0.399413
R Square 0.159531
Adjusted R Square 0.112838
Standard Error 9594.676
Observations 20
ANOVA

df SS MS F
Significance
F
Regression 1 314525132.1 3.15E+08 3.416605 0.081041
Residual 18 1657040523 92057807

Total 19 1971565655

Coefficie
nts
Standard
Error t Stat
P-
value
Lower
95%
Upper
95%
Lower
95.0%
Upper
95.0%
Intercept
57216.9
6
8170.0238
12
7.0032
8
1.54E-
06
40052.3
8...
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