A recent study of the relationship between social activity a

A recent study of the relationship between social activity and education showed the following results.

What is the value of the test statistic?

3.81

105.50

21.10

64.69

Solution

Doing an Expected Value Chart,          
          
13.01895735   27.20379147   41.77725118  
24.45023697   51.09004739   78.45971564  
29.53080569   61.70616114   94.76303318  
          
Using chi^2 = Sum[(O - E)^2/E],          
          
chi^2 =    64.68996055 = 64.69   [ANSWER, D]