The Sample Size Needed to Estimate a Population Mean to Within

question 31

Multiple Choice

The sample size needed to estimate a population mean to within 10 units was found to be 68.If the population standard deviation was 50,then the confidence level used was:

• A)99%
• B)95%
• C)90%
• D)None of these choices.

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Definitions:

Treasury Bond

A long-term government bond issued by the U.S. Treasury with a maturity period typically ranging from 20 to 30 years.

Face Value

The nominal or original value written on a financial instrument, such as a bond or stock certificate, not necessarily reflecting its market value.

Semi-Annual Coupon Bonds

Bonds that pay interest to holders twice a year, typically known for providing a steady income stream to investors.

Yield To Maturity

The total return expected on a bond if held until its maturity date, expressed as an annual rate.