The Manager of Lawn and Garden Services Would Like to Estimate

question 115

Multiple Choice

The manager of Lawn and Garden Services would like to estimate the proportion of her employees' time spent performing various gardening and lawn care activities. She has made 400 random observations of a typical worker, with the following results: $$\begin{array} { l r } \text { Activity } & \text { Times Observed } \\\hline \text { Mowing } & 200 \\\text { Trimming } & 80 \\\text { Raking } & 40 \\\text { Miscellaneous } & 80\end{array}$$ Between what limits can the manager be 68.26 percent confident about the true proportion of time spent mowing?

• A) 0 and .683
• B) .475 and .525
• C) .45 and .55
• D) .425 and .575
• E) .4 and .6

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Definitions:

Bank Statement

A document or electronic report issued by a bank summarizing transactions, including deposits and withdrawals, over a specific period.

Service Charge

A fee charged for a particular service provided by a company or institution.

Interest

The cost of borrowing money or the return on investment capital, often expressed as a percentage rate over a period of time.

Adjusted Cash Balance

The cash balance recorded in accounting books after considering outstanding checks and deposits in transit, ensuring it matches the actual bank balance.