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Hypothesis Testing - Sales Offices & Software Products

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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
Product A Product B Product C
Office 1 18 8 24
Office 2 15 22 13
Office 3 21 16 63

Under the null hypothesis, what is the expected number of Product A that would be sold by Office 2?

A) 27.00 B) 10.80 C) 13.50 D) 18.00

A contingency table is made up of 8 rows and 4 columns. How many degrees of freedom are present?

A) 24 B) 21 C) 28 D) 32

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Solution Summary

Excel spreadsheet attached calculates degree of freedom necessary and tests the idea that sales offices are correlated to software sales.

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