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The Following Table Shows the Monthly Sales (In Units) of Six

Question 81

Essay

The following table shows the monthly sales (in units) of six salespersons before and after a bonus plan was introduced.Using α = .05, determine whether the bonus plan has increased sales significantly.Assume the population of differences is normally distributed.(For the following matched samples, let the difference d = After - Before.) The following table shows the monthly sales (in units) of six salespersons before and after a bonus plan was introduced.Using α = .05, determine whether the bonus plan has increased sales significantly.Assume the population of differences is normally distributed.(For the following matched samples, let the difference d = After - Before.)

Correct Answer:

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​
H0: μd ≤ 0
Ha: μd > 0
t = 2.05...

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