Question: A simple random sample of size n is drawn from a population that is normally distributed. The same mean, x, is found to be 18.4,

A simple random sample of size n is drawn from a population that is normally distributed. The same mean, x, is found to be 18.4, and the sample standard deviation, s, is found to be 4.3.

Construct a 98% confidence interval about u if the sample size, n, is 57. Lower bound__ upper bound__ round to two decimal places

How does increasing the sample size affect the margin of error, E?

A. The margin of error decreases

B. The margin of errors does not change.

C. The margin of error increases.

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