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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