1. Suppose you have a sample of 260 people and 208 would buy the product

What is a 95% confidence interval for proportion? Use the fact that 95% of sample proportions are within 1.96 standard errors of the population proportion

2. What is the test stat for testing the mean is less than 200 if the sample mean is 201.24 the sample standard deviation s is 2 and the sample size is 100