The Average Cost of Tuition and Room and Board at Small

question 84

Multiple Choice

The average cost of tuition and room and board at small private liberal arts colleges is reported to be $8,500 per term, but a financial administrator believes that the average cost is higher. A study conducted using 350 small liberal arts colleges showed that the average cost per term is $8,745. The population standard deviation is $1,200. Let α = 0.05. Based on the computed test statistic or p-value, what is our decision about the average cost?

• A)Equal to $8,500
• B)Greater than $8,500
• C)Less than $8,500
• D)Not equal to $8,500

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Definitions:

Population Mean

The average of all the values in a population, calculated as the sum of all values divided by the number of values.

Sample Mean

The arithmetic average of a set of numerical values, calculated by adding them together and dividing by the number of observations.

Sample

A subset of individuals or observations selected from a larger population for the purpose of statistical analysis.

Descriptive Measure

A descriptive measure provides a summary or analysis that captures the characteristics or features of a dataset, often in terms of central tendency or variability.