A chi-square test for goodness of fit is used to examine the distribution of individuals across three categories, and a chi-square test for independence is used to examine the distribution of individuals in a 2-2 matrix of categories.  Which test has the larger value for df?

In the first stage of a repeated-measures ANOVA, total degrees of freedom is partitioned into:

A research study compares different laundry detergents to see which cleans clothes the best. Three white socks are soaked in mud and then left to sit out for one hour. After the hour is up each sock is washed by itself with a different brand of laundry detergent. The socks are then compared to see which is the whitest. What is the independent variable?

SSbetween groups is a measure of what?

The values in the following matrix are treatment means from a two-factor study. One of the means is missing. What value for the missing mean would most likely result in no main effect for factor B?     B1 B2 A1 10 8 A2 15 ?

Samples of size n = 9 are selected from a population with M = 80 with s = 18.  What is the expected value for the distribution of sample means?

A kinesiology professor wants to conduct a hypothesis test to compare a sample of this year’s final exam scores to a sample of last years to see if the COVID-19 circumstances affected scores. What type of hypothesis test should he use?

In a two-factor experiment with 2 levels of factor A and 2 levels of factor B, three of the treatment means are essentially identical and one is substantially different from the others.  What result(s) would be produced by this pattern of treatment means?

The values in the following matrix are treatment means from a two-factor study. One of the means is missing. What value for the missing mean would most likely result in no main effect for factor A?     B1 B2 A1 14 10 A2 12 ?

The values in the following matrix are treatment means from a two-factor study. One of the means is missing. What value for the missing mean would most likely result in no main effect for factor B?     B1 B2 A1 10 8 A2 15 ?