The correlation between the stress level and the academic performance of SENIOR HIGH students.
The school administrator wants to know if there is a relationship between 
the GWA and the stress level of senior high school students. Test at 5% level of significance.

Is there a significant relationship between the GWA and the stress level of senior 
high school students? 
Fill out the table below: 
Pearson’s r              DE                    P-value 
Legend:
                                 **            Highly significant 
                                  *             significant 
                                 ns            Not significant

1.Based on the data, the GWA of ABM students is very satisfactory.
Use the given range to answer number 1.

A. False

B. True 

2.The qualitative description for the GWA of CBL students is very satisfactory with a mean of 88?
Use the given range to answer number 2.

A. False

B. True

3.The data shows that HUMSS students experience low stress.
Use the Likert Scale to answer number 3.

A. False

B. True

4.OBL students experience a higher stress level compared to that of the CBL students.
Use the Likert Scale to answer number 4

A. False

B. True

5. The ventricle is the cavity in the brain. The mean volume of ventricles in the healthy elderly is 38.3 cm3. We know that the ventricular volume is normally distributed. To inspect the volume of ventricle as a biomarker for Alzheimer’s disease, we collected the ventricular volumes of 25 Alzheimer’s disease patients. If their sample mean was 49.9 cm3 with a sample
standard deviation of s=25.3 cm3. Can we conclude that the mean ventricular volume of Alzheimer’s disease patients is not equal to 38.3 cm3? Use the significance level of 5%.

You may use the online t-distribution calculator to solve the question: