Q 8.45 - Elementary Statistics

Question

Explain the effect on the margin of error and hence the effect on the accuracy of estimating a population mean by a sample mean. 

Increasing the sample size while keeping the same confidence level.

Step-by-Step Solution

Answer

Accuracy to estimate the population mean is decreased. 

Step 1: Given Information

It is given that sample size is increased and confidence level is same.

Step 2: Explanation

As sample size is increased and confidence level is same, it results in decreasing margin of error. Therefore the accuracy for estimation of population mean by sample mean is increased.