Question

PLEASE ANSWER ALL PARTS. says theres 5 parts remaining. if you know the parts please answer them. thank you

Score: 0 of 1 pt 4 of 4 (2 complete) 9.2.19-T A simple random sample of siren is drawn from a population that is normally distributed. The sample mean, is found to be 16.7, and the sample standard deviation, s, is found to be 42 (a) Construct a 98% confidence interval about if the sample size, n, is 34 (b) Construct a 98% confidence interval about all the sample size, n, is 58. How does increasing the sample size affect the margin of error, E? (c) Construct a 99% confidence interval about if the sample stre, n, is 34. How does increasing the level of confidence affect the size of the margin of error, E? (d) If the sample size is 12, what conditions must be satisfied to compute the confidence interval? (a) Construct a 98% confidence interval about pe if the sample site, n, is 34 Lower bound Upper bound (Round to two decimal places as needed) Enter your answer in the edit fields and then click Check Answer Clear All 5 parts remaining

Answer 1

(a) Lower bound = 14.94

Upper bound = 18.46

(b) Lower bound = 15.38

Upper bound = 18.02

(c) Lower bound = 14.731

Upper bound = 18.67