The grade-point averages (GPA) of a random sample of 6 students who joined PVL in the first semester of AY 2001-2002 wer
Posted: Mon Apr 11, 2022 6:19 am
The grade-point averages (GPA) of a random sample of 6 students
who joined PVL in
the first semester of AY 2001-2002 were recorded:
Student : 1
2 3
4 5 6
GPA (2nd Sem, AY 2005-2006) 1.8
2.4 2.5 2.0
1.7 2.0
GPA (1st Sem, AY 2006-2007) 2.0
1.9 3.0 2.5
2.4 2.0
Construct and interpret a 90% confidence interval for the mean
difference in the GPA,
assuming the distribution of the GPAs to be approximately normally
distributed. Is there
an evidence of decrease in GPA?
who joined PVL in
the first semester of AY 2001-2002 were recorded:
Student : 1
2 3
4 5 6
GPA (2nd Sem, AY 2005-2006) 1.8
2.4 2.5 2.0
1.7 2.0
GPA (1st Sem, AY 2006-2007) 2.0
1.9 3.0 2.5
2.4 2.0
Construct and interpret a 90% confidence interval for the mean
difference in the GPA,
assuming the distribution of the GPAs to be approximately normally
distributed. Is there
an evidence of decrease in GPA?