A Random Sample of 30 Executives from Companies with Assets

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
Degree or more, the following 95% confidence interval can be constructed:

A) 2.0 ± 2.052*6.52
B) 2.0 ± 3.182*6.51
C) 2.0 ± 2.052*42.46