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    Hypothesis Test

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    The management of Discount Furniture, a chain of discount furniture stores in the Northeast dwsigned an incentive plan for sales people. To evaluate this innovative plan, 12 salespeople were selected at random and their weekly incomes before and after the plan were recorded.

    Salesperson Before After

    Malone $320 $340
    Quick 290 285
    Jackson 421 475
    Jones 510 510
    Sloan 210 210
    Walker 402 500
    Mancuso 625 631
    Loma 560 560
    Cuso 360 365
    Utz 431 431
    Kushner 506 525
    Lawton 505 619

    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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