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Was there a significant increase in the typical salesperson's weekly income due to the innovative incentive plan at Discount Furniture?

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The management of Discount Furniture, a chain of discount furniture stores in the Northeast, designed an incentive plan for salespeople. To evaluate this innovative plan, 12 salespeople were selected at random, and their weekly incomes before and after the plan were recorded (shown in the attached file). Was there a significant increase in the typical salesperson's weekly income due to the innovative incentive plan? Use the .05 significance level. Estimate the p-value, and interpret it.

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This solution shows how to calculate the mean and standard deviation with the formula and sets up and solves the hypothesis testing question with an interpretation of the results in an attached Word document.

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