Math Solutions

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

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

  1. Increasing the confidence level while keeping the same sample size.
  2. Increasing the sample size while keeping the same confidence level.

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