of the players and coaches, most layer players and 2.ches) were practicing on th

Question

of the players and coaches, most layer players and 2.ches) were practicing on the south end of three Cooo facility. The rest were working with Of the three sheor facility cial team's coaches on the north end of player and coach was the indoor facility. Each uked where he was practicing, resulting in the 2x2 2. Use an appropriate measure to calcu- Table EX.2. Use a e the association between location and illness. Location in the Indoor Facility and Illness LE EX.2 Illness No 13 15 Yes Location South North 25 a. 2.6 b. 0.4 c. 5.9 d. 2.3

Explanation / Answer

Here for the given 2 X 2 contigency table we will use either phi's coefificent or Cramer's V

? = (ad - bc) / sqrt [(a + b) (a +c) (b +d) (c +d)]

where a = 25 ; b = 13 ; c = 5 and d = 15

? = (25 * 15 - 13 * 5)/ sqrt (38 * 30 * 28 * 20)

? = 0.4

so option b is correct here.

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