Statistics for Management and Economics (Book Only)
11th Edition
ISBN: 9781337296946
Author: Gerald Keller
Publisher: Cengage Learning
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Chapter 15.4, Problem 79E
To determine
Test hypothesis.
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In 2015, the average duration of long-distance telephone calls from a certain town was 3.9 minutes. A telephone company wants to perform a test to determine whether this average duration of long- distance calls has changed. Fifty calls, originating from the town, was randomly selected and the following summary minutes.
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Chapter 15 Solutions
Statistics for Management and Economics (Book Only)
Ch. 15.1 - Prob. 1ECh. 15.1 - Prob. 2ECh. 15.1 - Prob. 3ECh. 15.1 - Prob. 4ECh. 15.1 - Prob. 5ECh. 15.1 - Prob. 6ECh. 15.1 - Prob. 7ECh. 15.1 - Prob. 8ECh. 15.1 - Prob. 9ECh. 15.1 - Prob. 10E
Ch. 15.1 - Prob. 11ECh. 15.1 - Prob. 12ECh. 15.1 - Prob. 13ECh. 15.1 - Prob. 14ECh. 15.1 - Prob. 15ECh. 15.1 - Prob. 16ECh. 15.1 - Prob. 17ECh. 15.1 - Prob. 18ECh. 15.1 - Prob. 19ECh. 15.1 - Prob. 20ECh. 15.1 - Prob. 21ECh. 15.1 - Prob. 22ECh. 15.1 - Prob. 23ECh. 15.1 - Prob. 24ECh. 15.1 - Prob. 25ECh. 15.2 - Prob. 26ECh. 15.2 - Prob. 27ECh. 15.2 - Prob. 28ECh. 15.2 - Prob. 29ECh. 15.2 - Prob. 30ECh. 15.2 - Prob. 31ECh. 15.2 - Prob. 32ECh. 15.2 - Prob. 33ECh. 15.2 - Prob. 34ECh. 15.2 - Prob. 35ECh. 15.2 - Prob. 36ECh. 15.2 - Prob. 37ECh. 15.2 - Prob. 38ECh. 15.2 - Prob. 39ECh. 15.2 - Prob. 40ECh. 15.2 - Prob. 41ECh. 15.2 - Prob. 42ECh. 15.2 - Prob. 43ECh. 15.2 - Prob. 44ECh. 15.2 - Prob. 45ECh. 15.2 - Prob. 46ECh. 15.2 - Prob. 47ECh. 15.2 - Prob. 48ECh. 15.2 - Prob. 49ECh. 15.2 - Prob. 50ECh. 15.2 - Prob. 51ECh. 15.2 - Prob. 52ECh. 15.2 - Prob. 53ECh. 15.2 - Prob. 54ECh. 15.2 - Prob. 55ECh. 15.2 - Prob. 56ECh. 15.2 - Prob. 57ECh. 15.2 - Prob. 58ECh. 15.2 - Prob. 59ECh. 15.2 - Prob. 60ECh. 15.2 - Prob. 61ECh. 15.2 - Prob. 62ECh. 15.2 - Prob. 63ECh. 15.2 - Prob. 64ECh. 15.2 - Prob. 65ECh. 15.2 - Prob. 66ECh. 15.2 - Prob. 67ECh. 15.2 - Prob. 68ECh. 15.2 - Prob. 69ECh. 15.2 - Prob. 70ECh. 15.2 - Prob. 71ECh. 15.2 - Prob. 72ECh. 15.2 - Prob. 73ECh. 15.2 - Prob. 74ECh. 15.2 - Prob. 75ECh. 15.2 - Prob. 76ECh. 15.2 - Prob. 77ECh. 15.2 - Prob. 78ECh. 15.4 - Prob. 79ECh. 15.4 - Prob. 80ECh. 15.4 - Prob. 81ECh. 15.4 - Prob. 82ECh. 15.4 - Prob. 83ECh. 15.4 - Prob. 84ECh. 15.4 - Prob. 85ECh. 15.A - Prob. 1ECh. 15.A - Prob. 3ECh. 15.A - Prob. 4ECh. 15.A - Prob. 5ECh. 15.A - Prob. 6ECh. 15.A - Prob. 7ECh. 15.A - Prob. 8ECh. 15.A - Prob. 9ECh. 15.A - Prob. 10ECh. 15.A - Prob. 11ECh. 15.A - Prob. 12ECh. 15.A - Prob. 13ECh. 15.A - Prob. 14ECh. 15.A - Prob. 15ECh. 15.A - Prob. 16ECh. 15.A - Prob. 17ECh. 15.A - Prob. 18ECh. 15.A - Prob. 19ECh. 15.A - Prob. 20ECh. 15.A - Prob. 21ECh. 15.A - Prob. 22ECh. 15.A - Prob. 23ECh. 15.A - Prob. 24ECh. 15.A - Prob. 25ECh. 15.A - Prob. 26ECh. 15.A - Prob. 27ECh. 15.A - Prob. 28ECh. 15.A - Prob. 29ECh. 15.A - Prob. 30ECh. 15.A - Prob. 31ECh. 15.A - Prob. 32ECh. 15.A - Prob. 33ECh. 15.A - Prob. 34ECh. 15.A - Prob. 35ECh. 15.A - Prob. 36ECh. 15.A - Prob. 37ECh. 15.A - Prob. 38ECh. 15.A - Prob. 39ECh. 15.A - Prob. 40ECh. 15.A - Prob. 41ECh. 15.A - Prob. 42ECh. 15.A - Prob. 43ECh. 15 - Prob. 86CECh. 15 - Prob. 87CECh. 15 - Prob. 88CECh. 15 - Prob. 89CECh. 15 - Prob. 90CECh. 15 - Prob. 91CECh. 15 - Prob. 92CECh. 15 - Prob. 93CECh. 15 - Prob. 94CECh. 15 - Prob. 95CECh. 15 - Prob. 96CECh. 15 - Prob. 97CECh. 15 - Prob. 98CECh. 15 - Prob. 99CECh. 15 - Prob. 100CECh. 15 - Prob. 101CECh. 15 - Prob. 102CECh. 15 - Prob. 103CECh. 15 - Prob. 104CECh. 15 - Prob. 105CECh. 15 - Prob. 106CECh. 15 - Prob. 107CECh. 15 - Prob. 108CECh. 15 - Prob. 109CECh. 15 - Prob. 110CECh. 15 - Prob. 111CE
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