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Chapter 15: Chi-Square Tests

677

Figure 15-14:

Test Statistic Value

for

Example 15-4

Next we need to determine the critical value if we want to perform the test

using the classical approach. Since we were asked to perform the test at the

5% level of significance and there are 5 categories, then we need to

determine

. Observe that

= 5 and the degrees of freedom

=

– 1

= 5 – 1 = 4. We can use the

Critical Values for the Chi-Square

Distribution

workbook as shown in

Figure 15-15

.

Figure 15-15:

Chi-Square Critical Value for

Example 15-4

Click here for the Chi-Square Goodness-of-Fit Test Workbook Click here for the Critical Values for the Chi-Square Distribution Workbook