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Author Question: In a small private college, 80 students play baseball, 70 students play football, 50 students play ... (Read 202 times)

Mr. Wonderful

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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


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cadimas

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Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

D


Mr. Wonderful

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Reply 2 on: Jun 20, 2018
Great answer, keep it coming :)

marict

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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