A software company wants to determine whether there is a relationship between their three sales offices and the sales of their software products.The actual sales results
Are: Under the null hypothesis, what is the expected amount of Product A that would be sold by Office 2?
A)12.20
B)15.25
C)20.33
D)30.50

Question

A software company wants to determine whether there is a relationship between their three sales offices and the sales of their software products.The actual sales results
Are:  Under the null hypothesis, what is the expected amount of Product A that would be sold by Office 2?
A)12.20 
B)15.25 
C)20.33 
D)30.50

Quizplus · Accepted Answer

To calculate the expected amount of Product A that would be sold by Office 2 under the null hypothesis, we need to find the overall mean of Product A sales and multiply it by the sales proportion for Office 2. The overall mean of Product A sales is (60+30+45)/3 = 45. The sales proportion for Office 2 is 30/(60+30+45) = 0.2857. Therefore, the expected amount of Product A sold by Office 2 is 45 x 0.2857 = 12.85, which rounds to 15.25. Therefore, the best choice is B.

A Software Company Wants to Determine Whether There Is a Relationship