A Random Sample of 30 Executives from Companies with Assets

question 58

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: When comparing the mean annual incomes for executives with undergraduate and master's degrees or more,which of the following 95% confidence interval can be constructed?

• A)2.0 ± 2.056 * 6.52
• B)2.0 ± 3.182 * 6.52
• C)2.0 ± 2.052 * 42.46
• D)2.0 ± 3.182 * 42.46

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The maximum amount of money the government is authorized to borrow without seeking approval from Congress.

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