Exhibit 9-4 A Random Sample of 16 Students Selected from the Student

question 116

Multiple Choice

Exhibit 9-4
A random sample of 16 students selected from the student body of a large university had an average age of 25 years. We want to determine if the average age of all the students at the university is significantly different from 24. Assume the distribution of the population of ages is normal with a standard deviation of 2 years.
-Refer to Exhibit 9-4. At a .05 level of significance, it can be concluded that the mean age is

• A)not significantly different from 24
• B)significantly different from 24
• C)significantly less than 24
• D)significantly less than 25

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Definitions:

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The process of introducing new ideas, devices, or methods to enhance or create value in existing systems, products, or services.

Oral Presentation

The act of verbally delivering information or ideas to an audience, typically in a structured and formal setting.

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The act of displaying information numerically or graphically for analysis and communication purposes.

Simplify

The act of making something less complicated or easier to understand by reducing complexity.