Problem 4 To Investigate Whether An In House Training Program Improves Performance Annual Bonuses From A Sample Of 93 T 1 (105.28 KiB) Viewed 34 times
Problem 4 To investigate whether an in-house training program improves performance, annual bonuses from a sample of 93 traders who participated in the training program were compared to those from a sample of 105 traders who did not participate in the program. A summary of the bonuses follows: n Group Participants Non-participants Average bonus Standard deviation (Y) (sy) $42,200 $2,300 $39,600 $1,900 93 105 (a) Do the results provide evidence that average bonuses for participants and non-participants are significantly different?
(6) Construct a 95% confidence interval for the population mean of the bonuses for each group. (c) Do these data suggest that the training program is efficacious? Ex- plain.
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