A life insurance salesperson claims the average worker in the city of Winnipeg has no more than
Question:
A life insurance salesperson claims the average worker in the city of Winnipeg has no more than $25,000 of personal life insurance. To test this claim, you randomly sample 100 workers in Winnipeg. You find that this sample of workers averages $26,650 of personal life insurance. The population standard deviation is $12,000.
a. Determine whether the test shows enough evidence to reject the null hypothesis posed by the salesperson. Assume the probability of committing a Type I error is 0.05.
b. Assuming that the actual average for this population is $30,000, what is the probability of committing a Type II error?
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x 26650 n 100 12000 a b Ho 25000 Ha 25000 For onetailed test 05 z 05 x 26650 25000 ...View the full answer
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Related Book For 
Business Statistics For Contemporary Decision Making
ISBN: 9781119577621
3rd Canadian Edition
Authors: Ken Black, Ignacio Castillo
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