Q7. How will you change your late habits?
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III. HYPOTHESIS TESTING
1. Research question
•. Design 7Qs should change tardiness habits of HANU students or not
2. Assumption
. ôYesằ and «No» answers qualitative data
•. Binominal distribution
•. Parameter of interest: (p)
•. More than 70% students coming late to school with equal or greater than 1 day
•. should change their habit
3. Data analysis
•
Sample size: n =100
(np=100x0.7=70>5; n(1p)=100x0.3=30>5)
•
Ztest (upper tail test)
•
H0 : p<=0.7
Ha : p> 0.7
•
Significant level: α = 0.05
•
Critical value is Z0.05≈ 1.645. Reject H0 if Z>1.645
4.
Hypothesis testing procedure
•
Step 1: The null and alternative hypotheses
H0: p≤ 0.7
Ha: p> 0.7
•
Step 2: Test statistic
z=
•
(with q=1p=0.3, p^=82/100=0.82)
Step 3: Significant level
α = 0.05
•
Step 4: Decision rule
Reject H0 if Z >1.645
•
•
Step 5: Value of test statistic
Step 6: Conclusion
Z = 2.62 > 1.645 , we reject H0.
Pvalue
•
With z = 2.62, we have:
pvalue = P (Z > 2.62) = 1 0.9956 = 0.0044
there is enough evidence at the level of significance α = 0.05
Ha is true
there is enough evidence to conclude that more than 70% of Hanu students should change their lateforclass
habits
IV. Evaluation
1. Limitation
2. Implication
3. Recommendation
4. Conclusion
1. Limitation

Poor self awareness on the matter
Dishonesty in answering survey
2. Implication

Consequential realization
Willingness to change
3. Recommendation
 Stop using electronics before going to bed => sleep early

Reschedule timetable to avoid coincident; go to school a few minutes early
Motivate yourself
4. Conclusion

Determine situation: current rate and awareness
Significance of punctuality
Apply recommendation => Improve