A marketing manager studied the effect of packaging on sales. Four designs were chosen: design 1 had three colors, design 2 had three colors and cartoons, design 3 had five colors, and design 4 had five colors and cartoons. The ANOVA table below analyzes the effects of varying the number of colors and adding cartoons on sales. This is an example of a two-factor factorial design. Analysis of Variance for Sales The estimate of the standard deviation $\sigma$ is given by:
A)9.9.
B)3.15.
C)158.4.
D)10.23.

Question

A marketing manager studied the effect of packaging on sales. Four designs were chosen: design 1 had three colors, design 2 had three colors and cartoons, design 3 had five colors, and design 4 had five colors and cartoons. The ANOVA table below analyzes the effects of varying the number of colors and adding cartoons on sales. This is an example of a two-factor factorial design. Analysis of Variance for Sales  The estimate of the standard deviation $\sigma$ is given by:
A)9.9. 
B)3.15. 
C)158.4. 
D)10.23.

Quizplus · Accepted Answer

The Answer is B

A Marketing Manager Studied the Effect of Packaging on Sales σ\sigmaσ

A Marketing Manager Studied the Effect of Packaging on Sales $\sigma$