The data from an independent-measures research study produce a sample mean difference of 4 points and a pooled variance of 16.  If there are n = 8 scores in each sample, then what is the estimated standard error for the sample mean difference?

If we are testing whether eating gummy bears affects weight, what is the independent variable?

What is the value of the median for the following set of scores?Scores: 1, 3, 4, 6, 7, 8, 12, 23

What proportion of scores fall above the z-score of -1.57?

A set of scores ranges from a low of X = 43 to a high of X = 100. The scores are placed in a grouped frequency distribution table with an interval width of 8 points. What would the bottom interval of the table be?

What is the critical value for a repeated measures ANOVA with n=46, 5 levels for factor A, dfWG = 86, and an alpha level of 0.01?

What is the value of the median for the following set of scores?Scores: 1, 3, 4, 6, 7, 8, 12, 23

If we are testing whether eating gummy bears affects weight, what is the independent variable?

If we are testing pills that affect IQ, what is the dependent variable?

What is the result of comparing more than two groups with sequential t-tests?