From the table below

Calculate a 95% Confidence Interval (CI) for the true population proportion with successful treatment. Hint: The SE of p is the square root of (pq)/n. Using the information from Table 1, construct a 2x2 table to test the association between DOT status and successful treatment.

Using the information from Table 1, construct a 2x2 table to test the

Table 1

DOT	YES	NO	Total
yes			250
no			146
unknown			3
total	275	124	239

Generate the expected values for the empty cells below. Hint: the expected value for any cell is the row total x column total divided by the grand (overall) total.

DOT	YES	NO	Total
yes			250
no			146
unknown			3
total	275	124	239

7. Given these expected values, is the chi-square test an appropriate statistical test? 8. Which of the following would be an appropriate approach to the analysis of these data? Yes No A. Fisher's Exact Test using all data Yes No B. Chi-square or Fisher's Exact testing after deleting unknowns