An atomic absorption method for the determination of the amount of iron present in used jet...
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An atomic absorption method for the determination of the amount of iron present in used jet engine oil was found from pooling 30 triplicate analyses to have a standard deviation s 3.1 μg Fe/mL. If s is a good estimate of o, calculate the 95 and 99% confidence intervals for the result 21.7 µg Fe/mL if it was based on the following criteria. - (a) a single analysis 95% confidence interval= 21.7 ± 99% confidence interval = 21.7 ± (b) the mean of two analyses 95% confidence interval = 21.7 ± 99% confidence interval= 21.7 ± (c) the mean of six analyses 95% confidence interval = 21.7 ± 99% confidence interval = 21.7 ± μg Fe/mL ug Fe/mL μg Fe/mL ug Fe/mL μg Fe/mL μg Fe/mL An atomic absorption method for the determination of the amount of iron present in used jet engine oil was found from pooling 30 triplicate analyses to have a standard deviation s 3.1 μg Fe/mL. If s is a good estimate of o, calculate the 95 and 99% confidence intervals for the result 21.7 µg Fe/mL if it was based on the following criteria. - (a) a single analysis 95% confidence interval= 21.7 ± 99% confidence interval = 21.7 ± (b) the mean of two analyses 95% confidence interval = 21.7 ± 99% confidence interval= 21.7 ± (c) the mean of six analyses 95% confidence interval = 21.7 ± 99% confidence interval = 21.7 ± μg Fe/mL ug Fe/mL μg Fe/mL ug Fe/mL μg Fe/mL μg Fe/mL
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The confidence interval Cl is given by the following equati... View the full answer
Related Book For
Elementary Statistics Picturing the World
ISBN: 978-0321911216
6th edition
Authors: Ron Larson, Betsy Farber
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