Explanation Calculation: To compute the 90% confidence interval for the mean of log insulation time firstly the values are converted into logarithm by the following steps in Minitab, Step 1: Enter the provided data into a Minitab worksheet. Step 2: Go to ‘Calc’ and click on ‘Calculator’. Step 3: In the dialogue box that appears enter the name of the column in which the results of log values are to be stored under the field marked as ‘Store result in variable’. Step 4: Select the option ‘Logarithm’ and from the drop down menu select ‘Natural Log (log base e)’ under the option ‘ Functions ’. Step 5: Under the field marked as ‘Expression’ enter the name of the column containing the original data. Step 6: Finally click on ‘OK’ to get the logarithm values of the provided insulation failure time. The log values are obtained as shown in the table below, 6.10032 5.78690 5.91889 5.93225 5

LaunchPad for Moore's Introduction to the Practice of Statistics (12 month access)

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ISBN: 9781464133404

Author: David S. Moore, George P. McCabe, Bruce A. Craig

Publisher: W. H. Freeman

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Chapter 7.1, Problem 52E

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To calculate: The 90% confidence interval for average log failure time.

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Chapter 7.1, Problem 51E

Chapter 7.1, Problem 53E

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LaunchPad for Moore's Introduction to the Practice of Statistics (12 month access)

Ch. 7.1 - Prob. 1UYK Ch. 7.1 - Prob. 2UYK Ch. 7.1 - Prob. 3UYK Ch. 7.1 - Prob. 4UYK Ch. 7.1 - Prob. 5UYK Ch. 7.1 - Prob. 6UYK Ch. 7.1 - Prob. 7UYK Ch. 7.1 - Prob. 8UYK Ch. 7.1 - Prob. 9UYK Ch. 7.1 - Prob. 10UYK

Ch. 7.1 - Prob. 11UYK Ch. 7.1 - Prob. 12UYK Ch. 7.1 - Prob. 13UYK Ch. 7.1 - Prob. 14UYK Ch. 7.1 - Prob. 15UYK Ch. 7.1 - Prob. 16UYK Ch. 7.1 - Prob. 17E Ch. 7.1 - Prob. 18E Ch. 7.1 - Prob. 19E Ch. 7.1 - Prob. 20E Ch. 7.1 - Prob. 21E Ch. 7.1 - Prob. 22E Ch. 7.1 - Prob. 23E Ch. 7.1 - Prob. 24E Ch. 7.1 - Prob. 25E Ch. 7.1 - Prob. 26E Ch. 7.1 - Prob. 27E Ch. 7.1 - Prob. 28E Ch. 7.1 - Prob. 29E Ch. 7.1 - Prob. 30E Ch. 7.1 - Prob. 31E Ch. 7.1 - Prob. 32E Ch. 7.1 - Prob. 33E Ch. 7.1 - Prob. 34E Ch. 7.1 - Prob. 35E Ch. 7.1 - Prob. 36E Ch. 7.1 - Prob. 37E Ch. 7.1 - Prob. 38E Ch. 7.1 - Prob. 39E Ch. 7.1 - Prob. 40E Ch. 7.1 - Prob. 41E Ch. 7.1 - Prob. 42E Ch. 7.1 - Prob. 43E Ch. 7.1 - Prob. 44E Ch. 7.1 - Prob. 45E Ch. 7.1 - Prob. 46E Ch. 7.1 - Prob. 47E Ch. 7.1 - Prob. 48E Ch. 7.1 - Prob. 49E Ch. 7.1 - Prob. 50E Ch. 7.1 - Prob. 51E Ch. 7.1 - Prob. 52E Ch. 7.1 - Prob. 53E Ch. 7.1 - Prob. 54E Ch. 7.1 - Prob. 55E Ch. 7.2 - Prob. 56UYK Ch. 7.2 - Prob. 57UYK Ch. 7.2 - Prob. 59UYK Ch. 7.2 - Prob. 60UYK Ch. 7.2 - Prob. 61UYK Ch. 7.2 - Prob. 62UYK Ch. 7.2 - Prob. 63E Ch. 7.2 - Prob. 64E Ch. 7.2 - Prob. 65E Ch. 7.2 - Prob. 66E Ch. 7.2 - Prob. 67E Ch. 7.2 - Prob. 68E Ch. 7.2 - Prob. 69E Ch. 7.2 - Prob. 70E Ch. 7.2 - Prob. 71E Ch. 7.2 - Prob. 74E Ch. 7.2 - Prob. 73E Ch. 7.2 - Prob. 58UYK Ch. 7.2 - Prob. 75E Ch. 7.2 - Prob. 76E Ch. 7.2 - Prob. 79E Ch. 7.2 - Prob. 80E Ch. 7.2 - Prob. 81E Ch. 7.2 - Prob. 82E Ch. 7.2 - Prob. 83E Ch. 7.2 - Prob. 84E Ch. 7.2 - Prob. 85E Ch. 7.2 - Prob. 86E Ch. 7.2 - Prob. 87E Ch. 7.2 - Prob. 88E Ch. 7.2 - Prob. 89E Ch. 7.2 - Prob. 90E Ch. 7.2 - Prob. 92E Ch. 7.2 - Prob. 93E Ch. 7.2 - Prob. 94E Ch. 7.2 - Prob. 95E Ch. 7.2 - Prob. 96E Ch. 7.2 - Prob. 98E Ch. 7.2 - Prob. 78E Ch. 7.2 - Prob. 72E Ch. 7.2 - Prob. 77E Ch. 7.2 - Prob. 91E Ch. 7.2 - Prob. 97E Ch. 7.3 - Prob. 99UYK Ch. 7.3 - Prob. 100UYK Ch. 7.3 - Prob. 101UYK Ch. 7.3 - Prob. 102E Ch. 7.3 - Prob. 103E Ch. 7.3 - Prob. 104E Ch. 7.3 - Prob. 105E Ch. 7.3 - Prob. 106E Ch. 7.3 - Prob. 107E Ch. 7.3 - Prob. 108E Ch. 7.3 - Prob. 109E Ch. 7.3 - Prob. 110E Ch. 7.3 - Prob. 111E Ch. 7.3 - Prob. 112E Ch. 7 - Prob. 113E Ch. 7 - Prob. 114E Ch. 7 - Prob. 115E Ch. 7 - Prob. 117E Ch. 7 - Prob. 119E Ch. 7 - Prob. 120E Ch. 7 - Prob. 121E Ch. 7 - Prob. 122E Ch. 7 - Prob. 123E Ch. 7 - Prob. 124E Ch. 7 - Prob. 125E Ch. 7 - Prob. 126E Ch. 7 - Prob. 127E Ch. 7 - Prob. 130E Ch. 7 - Prob. 129E Ch. 7 - Prob. 118E Ch. 7 - Prob. 131E Ch. 7 - Prob. 132E Ch. 7 - Prob. 134E Ch. 7 - Prob. 135E Ch. 7 - Prob. 136E Ch. 7 - Prob. 137E Ch. 7 - Prob. 138E Ch. 7 - Prob. 139E Ch. 7 - Prob. 144E Ch. 7 - Prob. 143E Ch. 7 - Prob. 116E Ch. 7 - Prob. 128E Ch. 7 - Prob. 133E Ch. 7 - Prob. 140E Ch. 7 - Prob. 141E Ch. 7 - Prob. 142E

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The 90% confidence interval for average log failure time.

Solution Summary: The author explains how to calculate the 90% confidence interval for the mean of log insulation time by following the steps in Minitab.

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