Q.7.23 - Elementary Statistics

Question

America's Richest. Explain what the dotplots in part (c)  of exercise 7.17-7.22 illustrate about the impact of increasing sample size on sampling error.

Step-by-Step Solution

Answer

The impact of increasing sample size on sampling error is that The sample size is raised, the sampling error decreases. 

Step 1: Given Information

We have to  illustrate about the impact of increasing sample size on sampling error. 

Step 2: Explanation

Sampling error arises when only a portion of the population is utilised to estimate population parameters and draw inferences about the population.

For the supplied population, use MINITAB to create dotplots for samples of size$1,2,3,4,5 and 6$.

MINITAB output is given below:

The population mean height of six persons $46.5$ billion. The MINITAB result clearly shows that as the sample size is raised, the sampling error decreases.