Would the F-ratio increase, decrease, or stay the same if you decreased the differences between the sample means?

What is the standard deviation of a sample with SS=70 and n=55?

What is the mean of the number set: 1, 2, 3, 4, 5, 10, 11, 11, 100?

What is the critical value for a repeated measures ANOVA with n=20, 7 levels for factor A, dfWG = 52, and an alpha level of 0.01?

A two-factor experiment with 4 levels of factor A and 6 levels of factor B would consist of ____ separate treatment conditions and the dfbetween groups would be ____.

Which measure of central tendency will be most affected by an outlier?

Which of the following is UNTRUE of z-scores?

Ten years ago, only 15% of the U.S. population consisted of people more than 65 years old.  A researcher plans to use a sample of n = 300 people to determine whether the population distribution has changed during the past ten years.  If a chi-square test is used to evaluate the data, what is the expected frequency for the older-than-65 category?

For the following distribution, what is the width of each class interval?X              f20-24   215-19   510-14   45-9         1

What is the critical t-value of a one-tailed test with α=.05 when n = 25