Carolina, Inc. has three stores located in three different areas. Random samples of the sales of the three stores (in $1,000) are shown below. Please note that the sample sizes are not equal.

a.Compute the overall mean.
b.At 95% confidence, test to see if there is a significant difference in the average sales of the three stores. Use both the critical value and p-value approaches. Show your complete work and the ANOVA table.

Question

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

Quizplus · Accepted Answer

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