A random sample of 45 salespersons were asked how long, on average, they were able to talk to a potential customer. Their answers revealed a mean of 8.5 minutes with a variance of 9 minutes. If the confidence interval for the population mean is 8.5 * 0.88. What is the probability of selecting a salesperson that doesn't lie within this interval? 0.05 O 0.025 0.95 No correct answer
A random sample of 45 salespersons were asked how long, on average, they were able to talk to a potential customer. Their answers revealed a mean of 8.5 minutes with a variance of 9 minutes. If the confidence interval for the population mean is 8.5 * 0.88. What is the probability of selecting a salesperson that doesn't lie within this interval? 0.05 O 0.025 0.95 No correct answer
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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