An Initial Time Study Resulted in an Average Observed Time

question 15

Essay

An initial time study resulted in an average observed time of 2.2 minutes per cycle, and a standard deviation of .3 minutes per cycle. The performance rating was 1.20. What sample size, including the 20 observations in the initial study, would be necessary to have a confidence of 95.44 percent that the observed time was within 4 percent of the true value?

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Definitions:

Unliquidated Debt

A debt for which the parties either dispute the fact that any money is owed or agree that some money is owed but dispute the amount.

Repayment Schedule

A detailed plan outlining the frequency, amount, and duration of payments owed by a borrower to a lender until the debt is paid off.

Promissory Estoppel

A legal principle that prevents a party from going back on a promise made when the other party has reasonably relied on that promise to their detriment.

Promisor

The person or party in a contract who has made a promise to perform or deliver something to the other party.