Suppose a retailer claims that the average wait time for a customer on its support line is 187 seconds. A random sample of 43 customers had an average wait time of 179 seconds. Assume the population standard deviation for wait time is 51 seconds. Using a 95% confidence interval, does this sample support the retailer's claim? Using a 95% confidence interval, does this sample support the retailer's claim? Select the correct choice below, and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) OA. Yes, because the retailer's claim is between the lower limit of for the mean wait time. OB. No, because the retailer's claim is not between the lower limit of for the mean wait time. seconds and the upper limit of seconds and the upper limit of seconds seconds
Suppose a retailer claims that the average wait time for a customer on its support line is 187 seconds. A random sample of 43 customers had an average wait time of 179 seconds. Assume the population standard deviation for wait time is 51 seconds. Using a 95% confidence interval, does this sample support the retailer's claim? Using a 95% confidence interval, does this sample support the retailer's claim? Select the correct choice below, and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) OA. Yes, because the retailer's claim is between the lower limit of for the mean wait time. OB. No, because the retailer's claim is not between the lower limit of for the mean wait time. seconds and the upper limit of seconds and the upper limit of seconds seconds
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
Related questions
Question
![Suppose a retailer claims that the average wait time for a customer on its support line is 187 seconds. A random sample
of 43 customers had an average wait time of 179 seconds. Assume the population standard deviation for wait time is 51
seconds. Using a 95% confidence interval, does this sample support the retailer's claim?
Using a 95% confidence interval, does this sample support the retailer's claim? Select the correct choice below, and fill
in the answer boxes to complete your choice.
(Round to two decimal places as needed.)
O A. Yes, because the retailer's claim is between the lower limit of
for the mean wait time.
B. No, because the retailer's claim is not between the lower limit of
for the mean wait time.
seconds and the upper limit of
seconds and the upper limit of
seconds
seconds](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8095922b-c6e9-41a5-aaf9-40795a5664d9%2Fe1e178dc-3216-41c6-8726-70b5d012ad8a%2F8wjmm1n_processed.png&w=3840&q=75)
Transcribed Image Text:Suppose a retailer claims that the average wait time for a customer on its support line is 187 seconds. A random sample
of 43 customers had an average wait time of 179 seconds. Assume the population standard deviation for wait time is 51
seconds. Using a 95% confidence interval, does this sample support the retailer's claim?
Using a 95% confidence interval, does this sample support the retailer's claim? Select the correct choice below, and fill
in the answer boxes to complete your choice.
(Round to two decimal places as needed.)
O A. Yes, because the retailer's claim is between the lower limit of
for the mean wait time.
B. No, because the retailer's claim is not between the lower limit of
for the mean wait time.
seconds and the upper limit of
seconds and the upper limit of
seconds
seconds
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