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Engineering Economy 7th Edition by Leland Blank ,Anthony Tarquin
النسخة 7الرقم المعياري الدولي: 978-0073376301Engineering Economy 7th Edition by Leland Blank ,Anthony Tarquin
النسخة 7الرقم المعياري الدولي: 978-0073376301 تمرين 25
An engineer was asked to determine whether the average air quality in a vehicle assembly plant was within OSHA guidelines. The following air quality readings were collected:
81, 86, 80, 91, 83, 83, 96, 85, 89
a) Determine the sample mean.
b) Calculate the standard deviation.
c) Determine the number of values and percent of values that fall within ± 1 standard deviation of the mean.
81, 86, 80, 91, 83, 83, 96, 85, 89
a) Determine the sample mean.
b) Calculate the standard deviation.
c) Determine the number of values and percent of values that fall within ± 1 standard deviation of the mean.
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Discrete variables are those variables w...
Engineering Economy 7th Edition by Leland Blank ,Anthony Tarquin
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