A cheese processing company wants to estimate the mean cholesterol content of all one-ounce servings of cheese.
Question:
A cheese processing company wants to estimate the mean cholesterol content of all one-ounce servings of cheese. The estimate must be within 0.5 milligram of the population mean.
(a) Determine the minimum sample size required to construct a 95% confidence interval for the population mean. Assume the population standard deviation is 2.8 milligrams.
(b) Repeat part (a) using a 99% confidence interval.
(c) Which level of confidence requires a larger sample size? Explain.
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a n z c E 2 196 28 05 2 120473 121 serving...View the full answer
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