With the data collected, Dr Tian ran a test to see if there was a significant difference in the mean of X (a factor affecting the continued usage of e-learning communication) between male and female students.
Suggest the test that should be used and explain your reason.
State the independent and dependent variables, underlying null and alternative hypotheses. (8 marks)
SPSS Output
Group Statistics
Sample N Mean Std. Deviation Std. Error Mean
X Male 15 4.66 1.676 .433
Female 15 3.63 1.008 .260
Independent Samples Test
Levene’s Test for Equality of Variances t-test for Equality of Means
F Sig. t df Sig. (2-tailed) Mean Difference Std. Error Difference 95% Confidence Interval of the Difference
Lower Upper
X Equal variances assumed 5.63 .0w 2.046 28 .049 1.033 .505 -.001 2.068
Equal variances not assumed 2.046 22.959 .052 1.033 .505 -.012 2.078
[Important Note: w=the 7th digit of your student ID. E.g. s1234576. So, w=6]
ii) Interpret the result and explain whether there is a significant gender difference.
(12 marks)
iii) Based on the result and the choice of your X (you can use the same X/ Y as in your assignment 2, or another one), suggest whether Dr Tian should use two different ways to motivate male and female students to use e-learning communication, respectively. (20 marks)
Part B (60 marks)
In a pretest, data was obtained from 120 students on their satisfaction toward e-learning on a 7-point scale where 1 = Very Unfavourable and 7 = Very Favourable. The respondents also provided the rating for whether they agree their teacher have the following quality or not: 1) Variable “A” (1 = Strongly Disagree, 7 = Strongly Agree), 2) Variable “B” (1 = Strongly Disagree, 7 = Strongly Agree), and 3) Variable “C” (1 = Strongly Disagree, 7 = Strongly Agree).
Variable “A”, “B” and “C” depends on the 4th , 5th and 6th numerical value of your student ID.
Variable “A”
Use humor in teaching
Variable “B”
Check for progress
Variable “C”
Good communication skills
For example, for student ID s1243657, the 4th digital of s1243657 is “3”, therefore variable “A” is “Use interactive activities”; the 5th digital of s1243657 is “6”, therefore variable “B” is “Give a lot of assignments”; the 6th digital of s1243657 is “5”, therefore variable “C” is “Good communication skills
With the data collected, Dr Tian ran a test to see if there were significant relationships between A, B, C and satisfaction toward e-learning.
i) Suggest the test that should be used and explain your reason.
State the independent and dependent variables, underlying null and alternative hypotheses. (8 marks)
The following SPSS output has been generated for you.
Model Summary
Model R R Square Adjusted R Square Std. Error of the Estimate
1 .513a .263 .244 1.26364
a. Predictors: (Constant), A, B, C
ANOVAa
Model Sum of Squares df Mean Square F Sig.
1 Regression 66.240 3 22.080 13.828 .000b
Residual 185.227 116 1.597
Total 251.467 119
a. Dependent Variable: Satisfaction toward e-learning
b. Predictors: (Constant), A, B, C
Coefficientsa
Model Unstandardized Coefficients Standardized Coefficients t Sig.
B Std. Error Beta
1 (Constant) 2.153 .456 4.724 .000
A .439 .074 .490 5.904 .000
B -.147 .072 -.172 -2.059 .042
C .145 .084 .143 1.740 .085
a. Dependent Variable: Satisfaction toward e-learning
ii) Interpret the result and provide insightful remarks. (22 marks)
iii) Based on the result, suggest what Dr Tian should do to increase students’ satisfaction toward e-learning. (30 marks)
