What type of variables are discrete?

Which of the following is a fundamental difference between the t statistic and a z-score?

What is the value of SS for the following set of scores?  Scores:  1, 1, 4, 0

A population has SS = 100 and s2 = 4.  What is the value of Σ(X – M) for the population? Hint: Think about what these symbols imply, you are summing the deviation scores. What does this always equal?

For a research study with 2 levels of factor A, 3 levels of factor B, and 5 in each treatment condition, what are the df values for the F-ratio evaluating the main effect for factor A?

In general, what characteristics of the difference scores are most likely to produce a significant t statistic for the repeated-measures hypothesis test?

A researcher uses an anonymous survey to investigate the study habits of American college students.  Based on the set of 56 surveys that were completed and returned, the researcher finds that these students spend an average of 4.1 hours each week working on course material outside of class.  For this study, the set of 56 students who returned surveys is an example of a ____.

A researcher conducts a hypothesis test using a sample from an unknown population and compares it to a known population mean.  If the t statistic has df = 35, how many individuals were in the sample?

A researcher uses an anonymous survey to investigate the study habits of American college students.  Based on the set of 56 surveys that were completed and returned, the researcher finds that these students spend an average of 4.1 hours each week working on course material outside of class.  For this study, the set of 56 students who returned surveys is an example of a ____.

In general, what characteristics of the difference scores are most likely to produce a significant t statistic for the repeated-measures hypothesis test?