Please answer all the questions below !

Assumptions in a one-way ANOVA include:

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Interval or ratio levels and are continuous.

The presence of two or more outliers validates the data have a positive effect on the one-way ANOVA.

Only one variable has to have homogeneity of variances using Levene's test versus a two-way ANOVA needs all variables to have homogeneity of variances.

Two or more categorical dependent groups.

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A post hoc test:

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Is run before the ANOVA to determine which ANOVA test should be used

Is used when your p value is > 0.05, and it can be used to achieve statistical significance

It is recommended to run at least two post hocs to confirm findings

Identifies exactly which groups differ from each other

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One-way ANOVA examples include all but except:

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What is the difference in weight of an elephant in March, April, May, and June?

A company tests the relationship between brand of golf club, low overall scores in 18 holes of golf, gender, and golfer age group (17 years and under, 18 to 49 years, 50 years and older)

Your independent variable is a brand of coffee, and you collect data on Folgers, Dunkin Donuts, and Starbucks to find out if there is a difference in the amount of caffeine present.

What is the level of anxiety (low, medium, and high) of high school students associated with scores on a test (1-100)?

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ANOVA tests are used in research for all of the following except:

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Relies on the assumptions related to the probability distribution, independence of observations, and homogeneity of variances

A dog show, since it is not a random sample of the breed due to the limitations that are set of who can participate (e.g., breed, working vs. non-working breeds)

Evaluate the modes of two or more groups that are significantly different from each other.

Monitor weight loss for patients who use Ozempic (semaglutide) versus exercise and diet only.

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When using the Kruskal-Wallis H test, it is important to remember:

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If the shape on the graph is the same, you can use the test to compare the medians of your dependent variables.

The utilization of graphs assists with distributions in each group having the same shape.

Is less sensitive to outliers.

All of the above

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Degrees of freedom (df) in ANOVA:

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Have 2 degrees of freedom (df) to report in (one-way and two-way)

Are the number of independent variables that can be estimated

For three groups, there are only two degrees of freedom (df) to report

All of the above