Ace Jack had no idea whether the $100,000 he pays for training for his used car salespeople works. Even Dave, the leading sales person, thought it worked, but couldn't really tell. So, they hired your local help stat star and asked whether training made a difference. Here are the data-you tell Jack whether it worked.
|
Month
|
Before Training
|
After Training
|
|
Dec
|
$58,676
|
$87,890
|
|
Jan
|
$46,567
|
$87,876
|
|
Feb
|
$87,656
|
$56,768
|
|
Mar
|
$65,431
|
$98,980
|
|
April
|
$56,543
|
$98,784
|
|
May
|
$45,456
|
$65,414
|
|
June
|
$67,656
|
$99,878
|
|
July
|
$78,887
|
$67,578
|
|
Aug
|
$65,454
|
$76,599
|
|
Sep
|
$56,554
|
$88,767
|
|
Oct
|
$58,876
|
$78,778
|
|
Nov
|
$54,433
|
$98,898
|