Arandom sample of 500 adult residents of maricopa county found that 362 were in favor of increasing the highway speed limit to 75 mph, while another sample of 400 adult residents of pima county found that 282 were in favor of the increased speed limit. do these data indicate that there is a difference in the support for in increasing the speed limit between the residents of the two counties? use α = 0.05. (a) test the hypothesis h0: p1 = p2 versus h1: p1 ≠ p2. what is z0? round your answer to two decimal places (e. g. 98.76). z0 = (b) is it reasonable to conclude that there is a difference in the support for increasing the speed limit between the residents of the two counties?

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.