Confidence interval with a margin for error

Reference no: EM1393095

A large-sized bag of Neato Chips should contain 16 oz of potato chips. A sample of 50 large-sized bags is selected with the following results.

Sample Size = 50
Sample Mean = 15.85 oz
Sample Standard Deviation = 1.53 oz

a) Construct a 95% confidence interval for the mean amount of contents per bag. .

b) Interpret this interval.

c) How large a sample size will need to be selected if we wish to have a 99% confidence interval with a margin for error of .10 oz?

Reference no: EM1393095

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