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LICLL FILE. A random sample of 9 telephone calls in an office provided the following information: Call Number Duration (minutes) Type of Call 1 local long distance 3 4 local 4. 3 local 5 long distance 6. 6. local 7 3 local local 9. 8 local а. Determine the point estimate for the average duration of all calls. b. What is the point estimate for the standard deviation &f the population? c. What is the point estimate for the proportion of all calls that were long distance?

LICLL FILE. A random sample of 9 telephone calls in an office provided the following information: Call Number Duration (minutes) Type of Call 1 local long distance 3 4 local 4. 3 local 5 long distance 6. 6. local 7 3 local local 9. 8 local а. Determine the point estimate for the average duration of all calls. b. What is the point estimate for the standard deviation &f the population? c. What is the point estimate for the proportion of all calls that were long distance?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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(CLL PILE. A random sample of 9 telephone calls in an office provided the following information: Call Number Duration (minutes) Type of Call 1 3 local 8 long distance 3 local 4 local 5 long distance 6. 6. local 7 3 · local 8 5 local 8 local a. Determine the point estimate for the average duration of all calls. b. What is the point estimate for the standard deviation &f the population? C. What is the point estimate for the proportion of all calls that were long distance?
Transcribed Image Text:(CLL PILE. A random sample of 9 telephone calls in an office provided the following information: Call Number Duration (minutes) Type of Call 1 3 local 8 long distance 3 local 4 local 5 long distance 6. 6. local 7 3 · local 8 5 local 8 local a. Determine the point estimate for the average duration of all calls. b. What is the point estimate for the standard deviation &f the population? C. What is the point estimate for the proportion of all calls that were long distance?
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