Purchase Solution

ANOVA comparing average income at three levels of education

Not what you're looking for?

Ask Custom Question

See attached data file.

Question a: 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 salaries to test for differences between treatment means, the t statistic is based on:

a. The treatment degrees of freedom.
b. The total degrees of freedom.
c. The error degrees of freedom.
d. The ratio of treatment and error degrees of freedom.

Question b:
In a two-way ANOVA with interaction, a significant interaction term indicates that:

Choose the right answer:
a. the response variable is interactive.
b. a blocking factor is present.
c. both factors are unrelated.
d. both factors have a combined effect on the response variable.

Attachments
Purchase this Solution
Solution Summary

The expert uses ANOVA analysis to compare average income at three levels of educations.

Solution Preview

Question a: 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 ...

Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

View More Free Quizzes
Related BrainMass Solutions

  • ANOVA application in a surgical department

    Additionally this experiment includes three different levels of independent variable- below average, average and above average.

  • ANOVA Hypothesis Testing for F=1

    351175 ANOVA Hypothesis Testing In ANOVA, what does F=1 mean? What are the differences between a two sample t-test and ANOVA hypothesis testing? When would you use ANOVA at your place of employment, in your education, or in politics?

  • ANOVA: Description and Application

    In addition, there is little overlap when comparing the confidence levels of British Columbia and Ontario, and Newfoundland and Ontario. As A.

  • ANOVA and Post Hoc Test

    474664 ANOVA and Post Hoc Test Conduct an ANOVA comparing the anxiety levels (at posttest only) of participants across all three treatment conditions: CBT, psychodynamic, and supportive therapy.

  • Interpret sales tables and give CEO advice

    The IV (predictor variable) is the level of education and the DV (outcome variable) is sales. There are four levels of education in the sample data because there are four degrees of freedom in the ANOVA test.

  • Measuring family wealth when making political decisions

    4)Give an example of a problem (business, political, scientific) in which ANOVA analysis would be appropriate. The dependent variable is categorical, such as male vs. female, or comparing three different types of fertilizer.

  • Statistics: ANOVA, F-ratio, t-test, etc

    To be more specific, you need to look at the marginal means. The marginal mean of B^1 is going to be the average of everyone in B^1 ( (10 + 40)/2 = 25), the marginal mean of A^1 is the average of everyone in A^1, etc.

  • Set of ANOVA Questions

    a. one-way ANOVA b. two-way ANOVA c. three-way ANOVA d. one-within (repeated measures) ANOVA e. one-within and one-between ANOVA f. none of the above Question 5 Mark, a doctoral student in the College of Education, hears that

  • MCQs: ANOVA

    For an ANOVA comparing three treatment conditons, what is stated by the null hypothesis (Ho)? * at least one of the 3 population means is different from another mean * none of these choices are correct (this is the one I chose)?

View More Related Solutions