To Estimate the Mean of a Normal Population Whose Standard

question 132

Multiple Choice

To estimate the mean of a normal population whose standard deviation is 6,with a bound on the error of estimation equal to 1.2 and confidence level 99% requires a sample size of at least:

• A)166
• B)167
• C)13
• D)None of these choices.

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Definitions:

Investment

The assignment of monetary values in the hope of making a profit or gaining income.

Interest

A fee paid for the use of borrowed funds, or for delaying the repayment of a debt.

Days

Units of time equivalent to 24 hours, often used to measure durations or intervals.

Investment

The distribution of funds or assets with the intention of earning financial returns or profits.