1. A researcher was interested in knowing how many people in the city supported a new hospital tax. She sampled 130 people from the city and found that 68% of these people supported the tax. What is the upper limit and lower limit of the 95% confidence interval on the population proportion?
2. You randomly select 35 entries from a list of patient weights and the mean of your sample is 64 kg.You know that the standard deviation of the population is 14.Compute the 99% confidence interval on the mean.
3. what are the upper and lower limits to these questions