A Random Sample of 30 Executives from Companies with Assets

question 41

Multiple Choice

A random sample of 30 executives from companies with assets over $1 million was selected and asked for their annual income and level of education. The ANOVA comparing the average income among three levels of education rejected the null hypothesis. The mean square error (MSE) was 243.7. The following table summarized the results: Based on the comparison between the mean annual incomes for executives with undergraduate and master's degrees or more,________.

• A)a confidence interval shows that the mean annual incomes are not significantly different
• B)the ANOVA results show that the mean annual incomes are significantly different
• C)a confidence interval shows that the mean annual incomes are significantly different
• D)the ANOVA results show that the mean annual incomes are not significantly different

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Definitions:

Private Companies

Businesses owned by individuals or groups that do not trade their stock publicly on the stock market.

Individual Characteristics

Personal attributes or traits that distinguish one person from another, including physical, psychological, and behavioral qualities.

Readers

Individuals who engage with written material, interpreting and comprehending text for information or entertainment.

Audience's Education

The level of formal education or knowledge base that an audience possesses, which can influence how information or messages should be structured and delivered for effective communication.