A computer monitors and records how many rings it takes for an operator at a large food products company to answer, how much time each caller spends "on hold," and other data. As a check on the computer system, approximately how many calls should be manually monitored during the next year to estimate the true mean time that callers spend on hold to within 1 seconds with 90% confidence? Answer this question for the following values of the standard deviation of waiting times (in seconds): 4, 11, and 18. Question content area bottom Part 1 The company must sample enter your response here calls in order to estimate the true mean time that callers spend on hold to within 1 second with 90% confidence and a waiting time standard deviation of 4 seconds. (Round up to the nearest integer.)
A computer monitors and records how many rings it takes for an operator at a large food products company to answer, how much time each caller spends "on hold," and other data. As a check on the computer system, approximately how many calls should be manually monitored during the next year to estimate the true mean time that callers spend on hold to within 1 seconds with 90% confidence? Answer this question for the following values of the standard deviation of waiting times (in seconds): 4, 11, and 18. Question content area bottom Part 1 The company must sample enter your response here calls in order to estimate the true mean time that callers spend on hold to within 1 second with 90% confidence and a waiting time standard deviation of 4 seconds. (Round up to the nearest integer.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Question
A computer monitors and records how many rings it takes for an operator at a large food products company to answer, how much time each caller spends "on hold," and other data. As a check on the computer system, approximately how many calls should be manually monitored during the next year to estimate the true mean time that callers spend on hold to within
1
seconds with
90%
confidence? Answer this question for the following values of the standard deviation of waiting times (in seconds):
4,
11,
and
18.
Question content area bottom
Part 1
The company must sample
enter your response here
calls in order to estimate the true mean time that callers spend on hold to within
1
second
with
90%
confidence and a waiting time standard deviation of
4
seconds.(Round up to the nearest integer.)
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