# Hi square test for goodness of fit

In a three digit lottery, each of the three digits is supposed to have the same probability of occurrence. The table shows the frequency of occurrence of each digit for 90 consecutive daily three digit drawings.

A) Make a bar chart and describe it.

B) Calculate expected frequencies for each class.

C) Perform the chi-square test for a uniform distribution, can you reject the hypothesis that the digits are from a uniform population?

1 33

2 17

3 25

4 30

5 31

6 28

7 25

8 32

9 25

Total 270

https://brainmass.com/statistics/chi-squared-test/hi-square-test-goodness-fit-298218

#### Solution Preview

In a three digit lottery , each of the three digits is supposed to have the same probability of occurrence. The table shows the frequency of occurrence of each digit for 90 consecutive daily three digit drawings. A) Make a bar chart and describe it. B) Calculate expected frequencies for each class. C) Perform the chi-square test for a uniform distribution, can you reject the hypothesis that the digits ...

#### Solution Summary

Step by step method for computing test statistic hi square test for goodness of fit.