A survey asks a group of students if they buy CDs or not. It also asks if the students own a smartphone or not. These values are recorded in the contingency table below. What is the test statistic, χ20, for this test for homogeneity? Round the final answer to one decimal place (using expected frequencies that are also rounded to one decimal place).    CDs   No CDs   Row Total  Smartphone  9 18 27 No Smartphone  14 24 38 Column Total  23 42 65 Provide your answer below:   chi-square test statistic=

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A survey asks a group of students if they buy CDs or not. It also asks if the students own a smartphone or not. These values are recorded in the contingency table below. What is the test statistic, χ20, for this test for homogeneity?

  • Round the final answer to one decimal place (using expected frequencies that are also rounded to one decimal place).

 

 CDs 

 No CDs 

 Row Total 

Smartphone 

9

18

27

No Smartphone 

14

24

38

Column Total 

23

42

65

Provide your answer below:

 
chi-square test statistic=
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