A random sample of 16 persons was used in a study of the effectiveness of a new drug used in the treatment of poison ivy. Each person had a small portion of one arm exposed to poison ivy and allowed a rash to occur. The new drug was then applied to the infected area twice daily until the rash disappeared. The results are shown below = 2.4 days

S = 1.4 days

a) Can we conclude that the true mean is less than 3.0 days?

b) What is a 95% C. I for the true mean?

3) In the above sample of 16 persons, 5 persons required 6 days or more days of treatment before the rash was gone.

a) Can we conclude that, in the general population, more than 25% of those using the new drug will require at least 6 days of treatment?

b) What is a 95% C. I. for the true proportion?

Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.

What multiplys to be 1 but adds up to be 4

Find the measure for the angle indicated in bold