Wendy, Inc. has three stores located in three different areas. Random samples of the sales of the three stores (in $1,000) are shown below.

a.Compute the overall sample mean.
b.At 95% confidence, test to see if there is a significant difference in the average sales of the three stores. Note that the sample sizes are not equal. Show your complete work and the ANOVA table.

Question

Wendy, Inc. has three stores located in three different areas. Random samples of the sales of the three stores (in $1,000) are shown below.
  
a.Compute the overall sample mean.
b.At 95% confidence, test to see if there is a significant difference in the average sales of the three stores. Note that the sample sizes are not equal. Show your complete work and the ANOVA table.

Quizplus · Accepted Answer

The Answer of Wendy, Inc. has three stores located in three different areas. Random samples of the sales of the three stores (in $1,000) are shown below.
  
a.Compute the overall sample mean.
b.At 95% confidence, test to see if there is a significant difference in the average sales of the three stores. Note that the sample sizes are not equal. Show your complete work and the ANOVA table.