The hypothesis that men in high stress jobs have an increase…

The hypothesis that men in high stress jobs have an increased risk of developing coronary heart disease was tested during an 18-year follow-up study from 2000-2017 of a group of 8,000 men of Japanese ancestry in Hawaii.  Of the 4,500 men with higher stress jobs, 3,000 of them developed CHD; of the 3,500 men with lower stress jobs, 1,800 of them developed CHD. All 8,000 men completed the CHD examination at the end of study, 3,200 were free of prevalent coronary heart disease (CHD), while 4,800 had incident CHD (there was no loss to follow up).     Disease     Have CHD No CHD   Exposed ( high stress jobs) 3000 1500 4500 Not exposed (low stress jobs) 1800 1700 3500 Calculate the risk ratio for developing CHD for the high stress group as compared to the low stress group:

The hypothesis that men in high stress jobs have an increase…

The hypothesis that men in high stress jobs have an increased risk of developing coronary heart disease was tested during an 18-year follow-up study from 2000-2017 of a group of 8,000 men of Japanese ancestry in Hawaii.  Of the 4,500 men with higher stress jobs, 3,000 of them developed CHD; of the 3,500 men with lower stress jobs, 1,800 of them developed CHD. All 8,000 men completed the CHD examination at the end of study, 3,200 were free of prevalent coronary heart disease (CHD), while 4,800 had incident CHD (there was no loss to follow up).     Disease     Have CHD No CHD   Exposed ( high stress jobs) 3000 1500 4500 Not exposed (low stress jobs) 1800 1700 3500 Calculate the risk ratio for developing CHD for the high stress group as compared to the low stress group:

A population of 1000 adults who did not have congestive hear…

A population of 1000 adults who did not have congestive heart failure on January 1, 2009 was followed over the next 10 years. During this time period 50 of these adults developed congestive heart failure and 30 of these 50 adults died from congestive heart failure. The fatality rate for congestive heart failure cases during 10 years should be calculated as:

12) For the following research scenario, select the most app…

12) For the following research scenario, select the most appropriate test method. A randomized controlled trial of nursing skills test found that the mean score on the skills test was 3.508 among 20 nurses who were in the new educational program, whereas 20 nurses in the traditional program had a mean score of 3.027. The researchers want to know whether the mean test scores of the two groups are equal or not.  What is the most appropriate statistical method to test the hypothesis?

12) For the following research scenario, select the most app…

12) For the following research scenario, select the most appropriate test method. A randomized controlled trial of nursing skills test found that the mean score on the skills test was 3.508 among 20 nurses who were in the new educational program, whereas 20 nurses in the traditional program had a mean score of 3.027. The researchers want to know whether the mean test scores of the two groups are equal or not.  What is the most appropriate statistical method to test the hypothesis?