Question: 1: What is the null hypothesis in the test we just performed? With the chi - Square of 8.34, and a p value of 0.005,

1: What is the null hypothesis in the test we just performed? With the chi - Square of 8.34, and a p value of 0.005, we can conclude that the is a significant association between gender and NYHA class, meaning gender and NYHA class are not independent of each other. Question 2: How many females subjects had a NYHA class greater than 2? Class 3 = 1273 class 4 = 1262 (1273 1262) = 2535 Laura Williams This is your chi square test. I do not know where the other numbers in the answers below come from. Laura Williams I think this is from the text assignment? Laura Williams This is not the value above. Your output that you pasted is correct, but I don't know where these numbers came from. Therefore, there were 2535 female subjects with a NYHA class greater than 2. Question 3: Would we accept the null hypothesis in this test? Why or why not? With the P-value of 0.005, which is less than the commonly chosen significance level, we reject the null hypothesis. Meaning there is a correlated significant association between gender and NYHA class. Therefore, we would not accept the null hypothesis based

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