1. A sample of 400 college students participated in a study designed to evaluate the level of college student's knowledge of a certain group of common diseases. The following table shows the students classified by major field of study and level of knowledge of group of diseases

	Knowledge of disease
Major	Good	Moderate	Poor
Premedical	21	39	40
Other	19	81	200

1. State the appropriate null and alternative hypothesis
2. Which distribution will you recommend to address the above hypothesis
3. Compute the test statistic
4. Estimate the p-value
5. What do you conclude?