690 / 762
690
Chapter 15: Chi-Square Tests
63
263)
(65
138.6
2 138.6)
(170
= 16.7502 + 12.1125 + 0.1081
+ 9.8374 + 7.1137 + 0.0635 = 45.9854.
We can compute this value by using the
Chi-Square Test for
Independence
workbook to verify the computations.
Figure 15-24
shows
the output from the workbook. Observe that the
test static value
corresponds to the calculated value.
Figure 15-24:
Workbook computations for
Example 15-6
Thus, we can write up the test as:
: The criterion (criteria) used in purchasing the smart phone is
(are) independent of gender.
: The criterion (criteria) used in purchasing the smart phone is
(are) dependent on gender.
.:
=
∑
( )
= 45.9854
Click here for the Chi-Square Test for Independence Workbook