Arecent study examined the association between high blood pressure and increased risk of death from cardiovascular disease. there were 2676 men with low blood pressure and 3338 men with high blood pressure. in the low-blood-pressure group, 21 men died from cardiovascular disease; in the high-blood-pressure group, 55 died. a. compute the 95% confidence interval for the difference in proportions. b. do the study data confirm that death rates are higher among men with high blood pressure? state hypotheses, carry out a significance test, and give your conclusions.

Which of these sequences is a geometric sequence a 1,2,4, 7, 11, 16, 22. b. 2.4.8.14.22.38 c.3.6.9. 15.18,21 d. 3,9,27,81,243,729,

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Which equation can be solved to find x the measure of jk in the apex