Problem
The 26 students who signed up for General Psychology reported their GPA. Each person was matched with another person on the basis of the GPAs, and two groups were formed. One group was taught with the traditional lecture method by Professor Nouveau. The other class could access the Web for the same lectures whenever they wished. At the end of the term, both classes took the same comprehensive final exam. The comprehensive final exam scores are below. Analyze the data and write a conclusion. Must show all work for credit. Each worth .5 points unless indicated.
a) What is the IV and DV?
b) Is it paired or independent samples design? Be specific if it is paired
c) is it one tail or two tailed?
d) Write out in statistical notation the null and alternate hypothesis
e) What are the df and t crtitical value?
f) Conduct a t and d test
g) Write out your interpretation, beginning with Reject or fail to reject and with all the stat notations.
h) Type I or Type II error?
Comprehensive Final Exam
Lecture Web
50 56
72 75
64 62
82 90
89 91
65 65
74 72
85 87
80 76
65 79
82 77
75 78
64 70
Sum = 947 978