Question

1. Two researcher want to find out whether there is a difference among graduation rates (these are in percentages) of five colleges over a 10-year period. Using the Data set below, determine if there a difference between colleges? Do this manually and show all eight steps in computing. (HINT: There is one variable being examined (i.e. graduation rates) for more than two groups (i.e. college 1, 2, 3, 4, 5) that are tested only once).

	College 1	College 2	College 3	College 4	College 5
2005	67	82	94	65	88
2006	68	87	78	65	87
2007	65	83	81	45	86
2008	68	73	76	57	88
2009	67	77	75	68	89
2010	71	74	81	76	87
2011	78	76	79	77	81
2012	76	78	89	72	78
2013	72	76	76	69	89
2014	77	86	77	58	87

2. How do you interpret = 18.9, p < .05?

3. If the correlation between variable X and variable Y is perfect, what do you know about the prediction?

Answer 1