A researcher is conducting a chi-square test for independence to evaluate the relationship between gender and preference for three different designs for a new automobile.  Each individual in a sample of 30 males and 30 females selects a favorite design from the three choices. If the researcher obtains a chi-square statistic of c2 = 4.81, what is the appropriate statistical decision for the test?

Would the F-ratio increase, decrease, or stay the same if you increased the sample variances?

For a set of scores, the mean is 150 and the standard deviation is 12. What is the z-score for the score 180?

SSerror is a measure of what?

In a normal distribution what percent of scores are within two standard deviations from the mean?

For a set of scores, the mean is 150 and the standard deviation is 12. What is the z-score for the score 180?

How does the difference between fe and fo influence the outcome of a chi-square test?

In a normal distribution what percent of scores are within two standard deviations from the mean?

A researcher is conducting a study on the probability of drawing the Jack, Queen, King, and Ace of Hearts from a standard deck of cards with 52 cards. What is the probability of selecting one of these 4 cards?

Which of the following is not an appropriate independent variable for linear regression or Pearson’s correlation?