# Question: In each part explain the effect on the margin of

In each part, explain the effect on the margin of error and hence the effect on the precision of estimating a population mean by a sample mean.

a. Increasing the confidence level while keeping the same sample size.

b. Increasing the sample size while keeping the same confidence level.

a. Increasing the confidence level while keeping the same sample size.

b. Increasing the sample size while keeping the same confidence level.

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