1. according to the national center for health statistics, 22.4% of adults are smokers. A random sample of 300 adults is obtained.

(A) describe the sampling distribution of p(hats), the sample proportion of adults who smoke?

(b) in a random sample of 300 adults, what is the probability that atleast 50 are smokers?

(c)would it be unusual if a random sample of 300 adults results in 18% less being smokers?

2 a poll asked for peoples opinion on whether closing local news papers would hurt civil life, 428 out of 1003 respondents said it would hurt civil life a lot.

(a) obtain a point estimate by finding the proportion of respondents that said that closing local news paper would hurt civil life alot ?round to three decimal places as needed )

(b) find a 95% confidence interval for the population proportion who believed that closing local would hurt civil life alot explain the interval.

(c) find 90% confidence interval for the population proportion who believed that closing local papers would hurt civil life alot, explain the interval.