STATS 200-A study was conducted at a local college to analyze

1. Choose the best answer and justify

(a) A study was conducted at a local college to analyze the average GPA of students graduated from in 2015. 100 students graduated from in 2015 were randomly selected,

and the average GPA for the group is 3.5. The value 3.5 is a

i) statistic

ii) parameter
iii) cannot be determined

b) hotel ratings are usually on a scale from 0 star to 5 stars. The level of this measurement is

i) interval

ii) nominal

iii) ordinal

iv) ratio

(c) On the Election Day, News Club organized an exit poll in which specific polling stations were randomly selected and all voters were surveyed as they left those polling stations. This type of sampling is called:

(i) cluster

ii) convenience

(iii) systematic

(iv) stratified