can someone help with just the z and p value of these two?explain please, thank you!!!

MY NOTES ASK YOUR TEACHER Subjects with pre-existing cardiovascular symptoms who were receiving subitramine, an appetite suppressant, were found to be at increased risk of cardiovascular events while taking the drug. The study included 9806 overweight or obese subjects with pre-existing cardiovascular disease and/or type 2 diabetes. The subjects were randomly assigned to subitramine (4909 subjects) or a placebo (4897 subjects) in a double-blind fashion. The primary outcome measured was the occurrence of any of the following events: nonfatal myocardial infarction or stroke, resuscitation after cardiac arrest, or cardiovascular death. The primary outcome was observed in 564 subjects in the subitramine group and 494 subjects in the placebo group. Do the data give good reason to think that there is a difference between the proportions of treatment and placebo subjects who experienced the primary outcome? (Note that sibutramine has not been available in the United States since the end of 2010 due to its manufacturer's concerns over increased risk of heart attack or stroke, although at the present time it can still be purchased in other countries.) places.) State hypotheses, find the test statistic, and the P-value. (Round your test statistic to two decimal places and your P-value to four decimal Ho: Ptreatment VPplacebo Ha: Ptreatment # Pplacebo Z = P-value = Done The proportion of drivers who use seat belts depends factors such as age (young people are more likely to go unbelted) and sex (women are more likely to use belts). It also depends on local law. In New York City, police can stop a driver who is not belted. In Boston at the time of the survey, police could cite a driver for not wearing a seat belt only if the driver had been stopped for some other violation. Here are data from observing random samples of female Hispanic drivers in these two cities. City Drivers Belted New York 231 176 Boston 118 70 (a) Is this an experiment or an observational study? Why? O Observational study because the subjects were chosen at random. Experiment because treatments were imposed. Observational study because no treatment was imposed and the subjects were simply observed. Experiment because the subjects were chosen at random. b) Comparing local laws suggests the hypothesis that a smaller proportion of drivers wear seat belts in Boston than in New York. Do the data give good evidence that this is true for female Hispanic drivers? (Use a = 0.05. Round your test statistic to two decimal places and your P-value to four decimal places.) HO: PNY EV PB Hai PNY B V V PB Z = P-value = 1 x