Question

If you are told that the average GPA of students in 2015 at a public university was 3.27. A survey of students in this university that included 203 participants in the Spring semester of 2017 yielded an an average GPA of 3.35. From these information you discern that:______.

Answer 1

Sample mean = 3.35

Population mean = 3.27

Step-by-step explanation:

Given that:

Average GPA of students in university for the year 2015 = 3.27

Average GPA of 207 student of the same University in 2017 = 3.35

Using the data given above, the average GPA obtained in 2015 as the characteristic of being a PARAMETER. As it made use of all observations in other to arrive at the mean value of 3.27

The 2017 average GPA determined made use of only a subset of all students. In statistics, statistical values obtained from only a subset of the population observation is called STATISTIC.

Hence, it could be discerned that:

Sample mean = 3.35

Population mean = 3.27