Question

A quality control specialist for a restaurant chain takes a random sample of size 12 to check the amount of soda served in the 16 oz. Serving size. The sample mean is 13.30 with a sample standard deviation of 1.55. Assume the underlying population is normally distributed. What is the error bound

Answer 1

quality control specialist for a restaurant chain takes a random sample of size 12 to check the amount of soda served in the 16 oz. serving size. The sample mean is 13.30 with a sample standard deviation of 1.55. Assume the underlying population is normally distributed.

Please calculate margin of error with steps.

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ME = z*s/sqrt(n)

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ME = z*1.55/sqrt(12)

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Note: z depends on the desired level of confidence.

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