An examination of various branch offices to determine if a branch is an important factor in winning or losing business. You are willing to take a 5% chance of being incorrect.

1. State the problem
2. Write the null and alternative hypothesis
3. Compute the chi-square statistic
4. Determine the chi-square critical value
5. State your conclusions

Data:

Branch Wins Expected Losses Expected

1	45	47	30	28
2	38	40	29	27
3	73	79	47	41
4	65	62	33	36
5	35	39	43	39