Home Chapter 10 Quiz

# Quiz

This activity contains 15 questions.

## The formula for the total variation is given by:

The sum of the squared differences between the sample mean of each group and the overall mean , weighted by the sample size in each group is called the

 within-group variation total variation among-group variation inherent random variation

## Each of the following are mean square terms except:

 MSW MSA MST MSV

## Which of the ANOVA assumptions states that the values in each sampled group are drawn from normally distributed populations?

 Independence Randomness Homogeneity Normality

## The heterogeneous sets of items or individuals that have been matched on one or more variables are called __________.

 treatments factors blocks levels

## The __________ rank test is most often used to test whether c independent sample groups have been drawn from populations possessing equal medians.

 Tukey-Kramer Kruskal-Wallis Conover Wilcoxon

## The null hypothesis should be rejected if:

 . . . .

## "Within group" variation is considered experimental error, whereas "among group" variation is attributable to:

 random effects. main effects. blocking effects. treatments effects.

## Select the assumption below that is not part of the Kruskal-Wallis test.

 The c populations have the same shape. The underlying random phenomenon of interest is continuous. The c samples are randomly and dependently drawn from the same populations. The c populations have the same variability.

The data tabulated below shows the number of miles driven per gallon for four different types of gasoline. The cars, speed, and terrain for each experiment were the same.

Calculate the value of SST.

 848 754 264 50

The data tabulated below shows the number of miles driven per gallon for four different types of gasoline. The cars, speed, and terrain for each experiment were the same.

Determine the value of MSA.

 22.167 26.444 16.667 27.556

## The data tabulated below shows the number of hours that it takes three editors to read and edit an article for a scientific journal.Determine the value of MSW.

 0.175 1.496 4.275 0.3511

## The data tabulated below shows the number of hours that it takes three editors to read and edit an article for a scientific journal.Find the value of F.

 4.268 0.041 1.246 3.127