waseemnaseem
Feb 5, 2010, 08:56 PM
In a random sample of 200 persons having their lunch at the University cafeteria on meatless day it was observed that 30 percent preferred vegetable dishes.
i. Find 95% confidence interval for p.
ii. How large a sample is needed if we want to be 95% confident that our estimate of is within 0.02?
i. Find 95% confidence interval for p.
ii. How large a sample is needed if we want to be 95% confident that our estimate of is within 0.02?