A chemist obtained the following data for percent lin- dane in the triplicate analysis of an insecticide prepara- tion: 7.47, 6.98, 7.27. Calculate the 90% confidence limit for the mean of the three data, assuming that (a) the only information about the precision of the method is the precision for the three data points. (b) on the basis of long experience with the method, it is believed that s → o = 0.28% lindane.
A chemist obtained the following data for percent lin- dane in the triplicate analysis of an insecticide prepara- tion: 7.47, 6.98, 7.27. Calculate the 90% confidence limit for the mean of the three data, assuming that (a) the only information about the precision of the method is the precision for the three data points. (b) on the basis of long experience with the method, it is believed that s → o = 0.28% lindane.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:A chemist obtained the following data for percent lin-
dane in the triplicate analysis of an insecticide prepara-
tion: 7.47, 6.98, 7.27. Calculate the 90% confidence
limit for the mean of the three data, assuming that
(a) the only information about the precision of the
method is the precision for the three data points.
(b) on the basis of long experience with the
method, it is believed that s → o = 0.28%
lindane.
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