The Dean of a Business School Claims That the Average

question 117

Multiple Choice

The dean of a business school claims that the average starting salary of its graduates is more than
$50,000. It is known that the population standard deviation is $10,000. Sample data on the starting
Salaries of 36 randomly selected recent graduates yielded a mean of $52,000. What is the value of
The sample test statistic?

• A) z = 1.2
• B) t = 7.2
• C) t = 0.12
• D) t = 1.22

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Definitions:

ANOVA Table

A table used to display the sources of variance in a dataset and the results of an Analysis of Variance test.

Sum of Squares

A statistical measure that quantifies the total variation within a set of observations, used in various analyses and calculations.

Total SS

The total sum of squares, a measure used in statistical analysis to represent the total variation in a dataset.

Variation

A measure of how much values in a dataset differ from the mean of the population or from each other.