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OpenStudy (anonymous):
a laboratory tested 83 chicken eggs and founds that the mean amount of cholesterol was 233 milligrams with a standard of deviation of 12.9 milligrams. Construct a 95% confidence interval for the true mean cholesterol content of all such eggs.
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OpenStudy (anonymous):
to get a confidence interval of 95%, we will do mean + 2*standard deviation and mean - 2* standard devieation
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