Author Question: In a small private college, 80 students play baseball, 70 students play football, 50 students play ... (Read 240 times)

Mr. Wonderful · **on:** Jun 20, 2018

In a small private college, 80 students play baseball, 70 students play football, 50 students play basketball, and 550 students do not play any sport.

If a student is approached at random, what is the probability that he/she will play baseball or football?
A) 150 / 550 = .27
B) 150 / 750 = .20
C) 200 / 550 = .36
D) 550 / 750 = .73

Question 2

If the psychologist wants to see if there is a change (increase or decrease) in procrastination by 10 of the students who attended his workshop using the .05 significance level, the cutoff t score(s) would be

A) .62, 0, +2.62
B) +2.262
C) 2.262, 0
D) 2.262, +2.262