Question

consider the gre scores for a random sample of 6 students out of a class of 25: name julia andrew jason cathy jessica robert score 650 550 380 720 710 550 what is the point estimate for the mean score for students in the class?

Answer 1

Name  Score
Julia      650
Andrew 550
Jason    380
Cathy    720
Jessica 710
Robert   550

Point estimate for the mean score:
Sample mean = sum of all observations / number of observations

sample mean = (650+550+380+720+710+550) / 6
sample mean = 3560 / 6 
sample mean = 593.33

The point estimate for the mean score is 593.33