Hi, could someone please help me understand how does having 17 positive signs wont reject the test as at 17 the p value is 2.2% and p value at 16 is 5.4%, given this is a 95% significance level, I think it should reject the test at 17 positive signs.. thanks in advance!
Hello At 16 the p-value is P(X > = 16) * 2 = 0.11476 * 2 = 22.95% At 17 the p-value is P(X >= 17) * 2 = 0.05388 * 2 = 10.78% At 18 the p-value is P(X >= 18) * 2 = 0.02164 * 2 = 4.33% So we would reject at 18 but not at 17. Therefore, we must have 17 positive signs. Hope this helps! Andy
