Assume that a tennis coach from Texas wants to develop a rally test that can classify players’ performance level accurately. The coach randomly selected 20 tennis players, 10 players are Super Champs (high level), another 10 are Challengers (low level). The coach feeds 10 balls to each of players and sets up the cutoff score of 8. Namely, if a player who can return 8 out of 10 balls to a specific area, is considered a high level. Otherwise, they are considered as low level performance. The table below showed the numbers that players can return balls to the specific area. What is the contingence coefficient? SuperChamps Challegers 10 8 10 8 10 7 9 7 9 6 8 5 8 6 8 3 7 4 7 5 a. .70 b. .75 c. .80 d. .85
-
Assume that a tennis coach from Texas wants to develop a rally test that can classify players’ performance level accurately. The coach randomly selected 20 tennis players, 10 players are Super Champs (high level), another 10 are Challengers (low level). The coach feeds 10 balls to each of players and sets up the cutoff score of 8. Namely, if a player who can return 8 out of 10 balls to a specific area, is considered a high level. Otherwise, they are considered as low level performance. The table below showed the numbers that players can return balls to the specific area. What is the contingence coefficient?
SuperChamps
Challegers
10
8
10
8
10
7
9
7
9
6
8
5
8
6
8
3
7
4
7
5
a. .70
b. .75
c. .80
d. .85
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
