are data points, 
is the mean and n is the number of observations. 
An electric scale gives a reading equal to the true weight plus a random error that
is normall...
Mathematics, 26.11.2019 04:31 pinapunapula
An electric scale gives a reading equal to the true weight plus a random error that
is normally distributed with mean 0 and standard deviation s = .1 mg. suppose
that the results of five successive weighings of the same object are as follows: 3.142,
3.163, 3.155, 3.150, 3.141.
(a) determine a 95 percent confidence interval estimate of the true weight.
(b) determine a 99 percent confidence interval estimate of the true weight.
Answers: 3
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