1. The Financial database contains seven different types of companies. These seven are denoted by the variable Type.
Use a chi-square goodness-of-fit test to determine whether the seven types of companies are uniformly distributed in this database.
2. In the Manufacturing database, is the Value of Industrial Shipments (a four-category variable) uniformly distributed across the database?
3. Use a chi-square test of independence to determine whether Control is independent of Service in the Hospital database.
Comment on the results of this test.
4. In the Consumer database, is Location independent of Region? Use a chi-square test of independence to answer the question.