Name: Jason Rivera
1. Test whether the values development program
affected the participant’s commitment to the
project. The data as follows.
Step 1: State the Hypotheses
Null Hypothesis
“The values development program will not
affect the participant’s commitment to the
project.
Alternative Hypothesis:
“The values development program will affect the
participant’s commitment to the project.
Step 2: State the Level of Significance: α = 0.05
Step 3: Mean Comparison Method: Dependent
Sample T-Test Checking of Assumptions
✓ Dependent Variables are Continuous (Pre-test
and Post- Test)
✓ Independent Variables are categorical and
related (“Pretest” and “Post-test”)
✓ There are only two Outliers (As shown via Box
plot)
✓ Approximately normally distributed (Passed
Shapiro-Wilk test)
Boxplots
Pretest
Post Test
Assumption Checks
Test of Normality (Shapiro-Wilk)
W p
Pretest - Post Test 0.875 0.115
Note. Significant results suggest a deviation from
normality.
Paired Samples T-Test
Paired Samples T-Test
Measure
1 Measure 2 t d
fp
Pretest - Post Test -4.070 9 0.003
Note. Student's t-test.
Step 4: Compute the p-value
P-value = 0.003 which is the less than the
significance level.
Step 5: Statistical Decision
Since the 0.003 is less than the significance level.
Therefore reject Ho
Step 6: Draw a Conclusion
There is sufficient evidence to support that the
values development program will affect the
participant’s commitment to the project.
2. Test whether the girls differ in their personality
from that of the boys. Higher scores indicate
higher personality.
