An educational researcher wishes to know if there is a difference in academic performance for college freshmen that live on campus and those that commute. Data was collected from 275 students. Can we conclude that freshman housing location and academic performance are related? Location        Average        Below Average     Above Average      Total On campus     100                    57                        58                        215 Off campus    30                      17                         13                          60 Total              130                      74                        71                          275 Step 5 of 8 :   Find the degrees of freedom associated with the test statistic for this problem.

Cite a statistical experiment and its sample space.

Let's use SPSS to run a one-sample t-test!  Imagine that you are interested in whether the number of hours students in a statistics course work each week differs from the average number of hours reported by the general student body at ASU.  Thankfully, you have a data set that consists of information from students in a statistics course, including how many hours they work each week ("workhours").  You also happen to know that the average number of hours worked each week by the general student population at ASU is 25.  Use the data provided to conduct a one sample t-test in SPSS comparing the sample data to the population mean..  The dependent variable for your test should be "workhours".   Based on your output, the average number of hours worked each week by a sample is ________ .  Enter your answer rounded to two decimal places (i.e., 10.01, not 10.1, not 10.0, not 10.010).

When reading a problem, one must be aware of the sample size to determine if it is a Z-score or T-score problem. True or false