A grocery store manager decided to investigate whether slower moving items would sell quicker if these items were displayed at the end of the grocery store aisles or with a special florescent shelf tag displaying the price. The manager is interested in these nonprice reduction promotions because the store has only a small markup on these items. The manager decides to use end of aisle displays, shelf markers, and no special markers for four weeks each measuring unit sales at the end of each week. The following sales patterns were observed:

(Use the above information to answer the following three questions.)
-What is the within groups (error) sum of squares?
A) 86.0
B) 241.0
C) 98.0
D) 327.0
E) 26.8

Question

A grocery store manager decided to investigate whether slower moving items would sell quicker if these items were displayed at the end of the grocery store aisles or with a special florescent shelf tag displaying the price. The manager is interested in these nonprice reduction promotions because the store has only a small markup on these items. The manager decides to use end of aisle displays, shelf markers, and no special markers for four weeks each measuring unit sales at the end of each week. The following sales patterns were observed:
  
(Use the above information to answer the following three questions.)
-What is the within groups (error) sum of squares?
A) 86.0 
B) 241.0 
C) 98.0 
D) 327.0 
E) 26.8

Quizplus · Accepted Answer

The within groups (error) sum of squares is a measure of the variability within each group. In this context, 241.0 is the correct value for the within groups sum of squares.

A Grocery Store Manager Decided to Investigate Whether Slower Moving