Louis is managing sales agents at a call center. The company expects agents to make 20...
Louis is managing sales agents at a call center. The company
expects agents to make 20 cold calls per hour with a standard
deviation of 4 calls. He samples 35 of his employees, and finds
that they made an average of 23 calls. Louis wants to know if his
employees’ calls are significantly different than the company’s
expectations at the 2% significance level.
Calculate the value of the test statistic.
Homework Answers
The null and alternative hypothesis is
Test statistic is
=4.44
Test statistic = 4.44
Critical value of z at 
(two tailed ) is
zc = 2.33
Since value of test statistic > 2.33
We reject the null hypothesis
There is sufficient evidence to conclude that employee's call is significantly different from company's expectation.
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Louis is managing sales agents at a call center. The company
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