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MCS,MBA(IT), Pursuing PHD
Devry University
Sep-2004 - Aug-2010
Assistant Financial Analyst
NatSteel Holdings Pte Ltd
Aug-2007 - Jul-2017
Part I: Questions 6-8
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Compute effect size in the following questions:
6)
A company decides to add a new program that prepares randomly selected sales personnel to increase their number of sales per month. The mean number of sales per month for the overall population of sales personnel at this national company is 47 with a standard deviation of 5.1. The mean number of sales per month for those who participated in the new program is 50.
Compute the effect size of the new sales program.Â
Answer
Work:
7)Â
On a certain anxiety questionnaire, the general population is known to have a mean of 19 and a standard deviation of 2.1. A higher score represents higher levels of anxiety. Participants in a new relaxation program complete the questionnaire after completing the program and have a mean score of 17.
What is the effect size of the relaxation program?
Answer
Work:
8)Â
A residential treatment facility tests a new group therapy for patients with self-destructive behaviors. The therapists hope to decrease scores on a measure of self-destructive behaviors that has a mean in the overall residential treatment population of 16 and a standard deviation of 0.5. The mean score for the patients after the new group therapy is 14.9.
What is the effect size of the new group therapy?
Answer
Work:
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