The Following MINITAB Output Display Presents a 95% Confidence Interval

question 12

Multiple Choice

The following MINITAB output display presents a 95% confidence interval for the difference between two means.
$\begin{array} { l c r c r l } & \mathrm { N } & \text { Mean } & \text { StDev } & \text { SE Mean } & \\ \text { A } & 12 & 117.605 & 25.071 & 7.237 & \\ \text { B } & 15 & 74.481 & 27.849 & 7.191 & \\ \text { Difference } = \text { mu (A) } & - \mathrm { mu } ( \mathrm { B } ) & & & \\ \text { Estimate for difference: } & 43.124 & & & \\ \text { 95\% CI for difference: } & ( 23.128,63.120 ) & & \mathrm { DF } = 25 \end{array}$
Fill in the blanks: We are $95 \%$ confident that the difference in the means is between------- and-------.

• A) \(23.128,63.120\)
• B) \(74.481,117.605\)
• C) 0,25
• D) 12,15

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Definitions:

Accumulated Depreciation

The total amount of a tangible asset's cost that has been allocated as depreciation expense since it was put into use, reflecting usage or wear and tear.

Service Fees Earned

Service fees earned refer to revenues a company generates from providing services to clients or customers, as opposed to selling physical goods.

Work Sheet

A paper or electronic document used by accountants to compile and analyze financial information prior to preparing financial statements.

Net Income

The total earnings of a company after subtracting all expenses, including taxes and operating expenses.