In Developing an Interval Estimate for a Population Mean,a Sample $\pm$

question 85

Multiple Choice

In developing an interval estimate for a population mean,a sample of 50 observations was used.The interval estimate was 19.76 $\pm$ 1.32.Had the sample size been 200 instead of 50,the interval estimate would have been:

• A) 19.76\(\pm\) .33
• B) 19.76 \(\pm\) .66
• C) 19.76 \(\pm\) 5.28
• D) None of these choices.

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Definitions:

Dispersion

The degree to which a distribution is stretched or squeezed, often measured by statistics such as range, variance, or standard deviation.

Relative Measure

A statistical or analytical metric that is used to assess or compare entities with reference to another entity or a common benchmark.

Box-and-Whisker Plots

A graphical representation of data that displays the distribution, median, quartiles, and outliers of a dataset.

Key Statistics

Important or crucial numerical information that helps summarize, analyze, or interpret data or phenomena.