SOLUTION: A laboratory tested 71 chicken eggs and found that the mean amount of cholesterol was 230 milligrams with σ = 10.4 milligrams. construct a 95% confidence interval for the true
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Question 597928: A laboratory tested 71 chicken eggs and found that the mean amount of cholesterol was 230 milligrams with σ = 10.4 milligrams. construct a 95% confidence interval for the true mean cholesterol content, u, of all such eggs
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
( xbar - z*sigma/sqrt(n), xbar + z*sigma/sqrt(n) )
( 230 - 1.95996*10.4/sqrt(71), 230 + 1.95996*10.4/sqrt(71) ) ... Note: use a table or a calculator to find the value of z
(227.58091, 232.419086)
So the 95% confidence interval is (227.58091, 232.419086)
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