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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Definitions:

Quintile Distribution

A statistical measure dividing a population into five equal groups according to a particular variable, such as income or wealth.

SNAP Program

The Supplemental Nutrition Assistance Program, a federal aid program in the United States that provides food-purchasing assistance for low- and no-income people.

Temporary Assistance

Short-term aid or support provided by government or private entities to individuals or families in need, usually in the form of financial help, food, or housing.

Needy Families

Households with insufficient income or resources to maintain an adequate standard of living, often targeted by social assistance programs.