Explore BrainMass

# Advanced Hypothesis Testing for two sample test

This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

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.
Salesperson Before After
Sid Mahone \$320 \$340
Carol Quick 290 285
Tom Jackson 421 475
Andy Jones 510 510
Jean Sloan 210 210
Jack Walker 402 500
Peg Mancuso 625 631
Anita Loma 560 560
John Cuso 360 365
Carl Utz 431 431
A. S. Kushner 506 525
Fern 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.

#### Solution Preview

Solution. We can make a new table of the difference=after-before

Salesperson Before After Difference d=after-before
Sid Mahone \$320 \$340 20
Carol Quick 290 285 -5
Tom Jackson 421 475 54
Andy Jones 510 510 0
Jean Sloan 210 210 0
Jack ...

\$2.19