In Developing a Confidence Interval for the Population Mean $\mu$ , a Sample of 50 Observations Was Used, and the

question 1

Multiple Choice

In developing a confidence interval for the population mean $\mu$ , a sample of 50 observations was used, and the confidence interval was 15.24 $\pm$ 1.20. Had the sample size been 200 instead of 50, the confidence interval would have been

• A) 7.62 \(\pm\)
• 1)20
• B) 15.24 \(\pm\)
• )30
• C) 15.24 \(\pm\)
• )60
• D) 3.81 \(\pm\)
• 1)20
• E) None of the above answers are correct.

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Definitions:

Return

The profit or loss derived from an investment over a particular period, often expressed as a percentage of the investment's initial cost.

Inflation

The velocity of rise in the aggregate pricing of goods and services, reducing the power of the dollar.

Dividends

Regular payments declared by a company's board of directors and given to its shareholders from the company's earnings.