Confidence Interval & Hypothesis Testing: Cure Rate
A standard surgery was performed on 50 patients with severe
sinus infection, and 36 were cured.
a) Find a 95% confidence interval for the population cure
rate or proportion. =0.5955, 0.8445
b) Do these data indicate that the population cure rate or
proportion is more than 70%? Do a hypothesis test. Use alpha=0.05.
z=0.309





