Exam 11: One-Way Analysis of Variance Anova

The ______ of the t-test and F-ratio involves ______, which may also be defined as ______ variability.

The Tukey test limits familywise error by ______.

The ______ of the F-ratio (______ variability) may also be thought of as ______.

A researcher hypothesizes Democrats are more in favor of gun control than Moderates, who in turn are more favor of gun control than Republicans. In conducting a one-way ANOVA with these three groups, how should the alternative hypothesis (H₁) be stated?

A researcher hypothesizes that people with 'high' incomes will be more opposed to changes in the health care system than people with 'average' incomes, who in turn will be more opposed than people with 'low' incomes. In conducting a one-way ANOVA with this data, how could the null hypothesis (H₀) be stated?

For the same set of data, the relationship between the t-test and the F-ratio may be characterized as ______.

A study reports the F-ratio F(3,20) = 1.16. This means that the study consisted of ______ groups with ______ participants in each group.

If my value of the F ratio falls between the critical values for α = .05 and α = .01, I will ______ the null hypothesis and conclude ______.

A researcher hypothesizes people who smoke cigars are more likely to oppose laws banning smoking in public places than people who smoke cigarettes, who in turn are more opposed to these laws than people who do not smoke at all. In conducting a one-way ANOVA with these three groups, how should the alternative hypothesis (H₁) be stated?

The F-ratio can be expressed in a single distribution.

Imagine the value of an F-ratio is less than the critical value for $\alpha$ = .05 and less than the critical value for α = .01. Which is the most appropriate way to report the level of significance?

The F-ratio can only be a positive number because the formula is based on squared deviation of the scores from the mean.

The F-ratio is calculated by ______.

Explained error is the probability of making at least one type I error across a set of comparisons.

Barry calculates an F-ratio for a one-way ANOVA comparing the incomes of graduates of three different SJSU majors and rejects the null hypothesis. Which of the following is the most appropriate conclusion he could draw?

As there is a growing concern about alcohol-related problems on college campuses, a team of researchers was interested in studying students' perceptions about alcohol consumption-more specifically, in how students define a "drink" (White et al, 2004). These researchers were interested in seeing whether the size of a cup influences how much beer students will pour into the cup. In their study students poured what they believed were 12 ounces of beer into one of three cups of different sizes (16 ounce, 24 ounce, or 32 ounce). They hypothesized that the larger the cup, the more beer students would pour. The results of their analyses are presented below: You decide to conduct the analytical comparison of 16 oz vs. 24 oz. Based on your calculations, which of the following represents the decision regarding the null hypothesis?

The degrees of freedom ______ indicates ______.

The theoretical distribution of F-ratios is ______ because ______. Figure A Figure B

If a researcher wanted to compare each group with a single reference group, the appropriate analytic comparison would be ______.

The theoretical distribution of F-ratios is ______.