Assignment:
Discuss the following:
The scores represent overall knowledge learned under each method of instruction. The higher the score, the more knowledge learned. The Independent and Dependent variables are:
Independent variable - the method of instruction at three levels: Lecture, Cooperative, and Computer.
Dependent variable -
A B C
1 Group 1 Group 2 Group 3
2 78 45 77
3 88 54 75
4 96 65 34
5 77 47 88
6 83 77 97
7 85 61 69
8 90 53 45
9 85 69 90
10 95 70 85
11 68 45 66
a. Compute the descriptive statistics for Group 1.
As a check on your work for Group 1 you should obtain the following:
Mean 84.5
Standard Error 2.704933764
Meadian 85
Mode 85
Standard deviation 8.553751614
Sample Variance 73.16666667
Kurtosis 0.13658086
Skewness -0.51130504
Range 28
Sum 845
Count 10
Largest 96
Smallest 68
Confidence level (95.0%) 6.118989952
b. Calculate the correlation coefficient between Groups 1 and 2.
c. Perform a t-Test between Groups 1 and 2.
d. Perform analysis of variance (ANOVA)