Guitars R. US has three stores located in three different areas. Random samples of the sales of the three stores (in $1000) 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. Set up the complete ANOVA table. Please note that the sample sizes are not equal.

Question

Guitars R. US has three stores located in three different areas. Random samples of the sales of the three stores (in $1000) 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. Set up the complete ANOVA table. Please note that the sample sizes are not equal.

Quizplus · Accepted Answer

The Answer of Guitars R. US has three stores located in three different areas. Random samples of the sales of the three stores (in $1000) 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. Set up the complete ANOVA table. Please note that the sample sizes are not equal.

Guitars R US Has Three Stores Located in Three Different Areas