A Sample of 225 Elements from a Population with a Standard

question 87

Multiple Choice

A sample of 225 elements from a population with a standard deviation of 75 is selected. The sample mean is 180. The 95% confidence interval for $\mu$ is

• A)105.0 to 225.0
• B)175.0 to 185.0
• C)100.0 to 200.0
• D)170.2 to 189.8

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Definitions:

Electronic Deposit

The transfer of funds directly into a bank account, eliminating the need for physical checks.

Certificate of Deposit

A savings certificate with a fixed maturity date and specified fixed interest rate that is issued by a bank.

Principal

A primary party to a transaction, such as the chief participant in a business or the main amount of a loan.

Foreign Currency

Currency used in a country other than the one in which it is being considered, which usually requires exchange for use.