Perform a statistical analysis / test of hypothesis on each of the following problems. Past records showed that the average grade of students taking Filipino I is 85. A new method of teaching the...

Perform a statistical analysis / test of hypothesis on each of the following problems.

Past records showed that the average grade of students taking Filipino I is 85. A new method of teaching the subject is employed and a random sample of 24 students taking up the said subject is selected. The mean grade of the sample is 89 while the corresponding standard deviation is 16. Is there evidence that the new method of teaching has improved the student’s grade? Perform an analysis at the 5% level of significance.

Extracted text: 2. Past records showed that the average grade of students taking Filipino I is 85. A new method of teaching the subject is employed and a random sample of 24 students taking up the said subject is selected. The mean grade of the sample is 89 while the corresponding standard deviation is 16. Is there evidence that the new method of teaching has improved the student's grade? Perform an analysis at the 5% level of significance.


Extracted text: 2. Past records showed that the average grade of students taking Filipino I is 85. A new method of teaching the subject is employed and a random sample of 24 students taking up the said subject is selected. The mean grade of the sample is 89 while the corresponding standard deviation is 16. Is there evidence that the new method of teaching has improved the student's grade? Perform an analysis at the 5% level of significance.