Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-chi-squared-1132-en_vufsw-chi-squared-1132-en
   name	vufsw-chi-squared-1132-en
   section	inferential statistics/nhst/test statistic/chi-squared
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	calculation
   Program	calculator
   Language	English
   Level	statistical literacy

   Question

   An investigation among the members of a large trade union organization on the relationship between their degree of involvement (low, middle, high) at the trade union and their participation in a strike (yes, no) provides the following data:

   	Involvement
   	low	middle	high	total
   participation strike
   yes	30	25	70	125
   no	70	25	30	125
   total	100	50	100	250

   Calculate the value of Chi-square on the data in the table above.

   
   
   1. FALSE: 1.6
   2. FALSE: 6.4
   3. TRUE: 32
   4. FALSE: 80
   
   

   Solution

   Use the chi square formula:

   chi square; Χ² = (20)²/50 + (20)²/50 + 0 + 0 + (20)²/50 + (20)²/50 =32

   If you want to know more about the chi square test and degrees of freedom watch this clip

   
   
   1. False
   2. False
   3. True
   4. False