Q 8.47 - 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 confidence level while keeping same sample size.

Step-by-Step Solution

Answer

Accuracy to estimate the population mean is decreased. 

Step 1: Given Information

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

Step 2: Explanation

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