The Following MINITAB Output Presents a 95% Confidence Interval Find the Sample Size Needed So That the 99% Confidence

question 8

Multiple Choice

The following MINITAB output presents a 95% confidence interval. $\begin{array} { c r r c c } \hline { \text { The assumed sigma } = 8.7500 } & \\\\\text { Variable } & \mathrm { N } & \text { Mean } & \text { SE Mean } & 95 \% \mathrm { CI } \\\mathrm { x } & 48 & 32.950 & 1.2630 & ( 30.475,35.425 ) \\\hline\end{array}$


Find the sample size needed so that the 99% confidence interval will have a margin of error of 1.3.

• A) 301
• B) 14
• C) 175
• D) 246

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Definitions:

Accumulated Depreciation

The total amount of an asset's cost that has been expensed since the time it was put into use.

Original Cost

The initial monetary value of an asset or item when it was first acquired by a company or individual.

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Money in the form of coins or notes, as opposed to checks, credit, or other forms of payment.

Loss

The negative financial result from a business’s operations or transactions when costs and expenses exceed revenues.