In Order to Determine an Interval for the Mean of a Population

question 7

Multiple Choice

In order to determine an interval for the mean of a population with unknown standard deviation, a sample of 24 items is selected. The mean of the sample is determined to be 23. The number of degrees of freedom for reading the t value is

• A)21.
• B)22.
• C)23.
• D)24.

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