How might an age difference confound given research findings

Reference no: EM131422470

In a study of how depression may affect one s ability to survive a heart attack, the researchers reported the ages of the two groups they examined. The mean age of 2397 patients without cardiac disease was 69.8 years (SD = 8.7 years) while for the 450 patients with cardiac disease, the mean and standard deviation of the ages were 74.0 and 7.9, respectively.

a) Create a 95% confidence interval for the difference in mean ages of the two groups.

b) How might an age difference confound these research findings about the relationship between depression and ability to survive a heart attack?

Reference no: EM131422470

Questions Cloud

Create confidence interval for difference in mean ages : Create a 95% confidence interval for the difference in the proportions of smokers in the two groups.- Is this evidence that the two groups in the study were different? Explain.

List the various hearings that will typically occur : List the various hearings that will typically occur and how the case is affected by each event. What are the potential hearings that might be involved in this case? Be sure to describe them from the time of arrest through appeal

Summarize strategies for successfully implement change plan : Present the prevailing pressure that threatens organizational success. Summarize your strategies for successfully implementing the change plan in order to address the internal or external pressure.

Describe the civil service system : Describe the organization of police agencies at the local, state, and federal level. Describe the civil service system and how it affects police organization. Select a city and imagine you are the police chief of a local agency in that city

How might an age difference confound given research findings : How might an age difference confound these research findings about the relationship between depression and ability to survive a heart attack?

Are given data appropriate for the inference : Wondering if there is evidence that drivers of SUVs are safer, we hope to create a 95% confidence interval for the difference in driver death rates for the two types of vehicles. Are these data appropriate for this inference? Explain.

Do you think this woman was in her right mind : Do you think this woman was in her right mind? Do you think it was post-partum depression? Does it matter that her child was three years old? If you were the prosecutor in this case, would you charge her

Which ethical framework would persuade you in an argument : Which ethical framework would persuade you in an argument in favor of raising the minimum wage? Which ethical framework would support a decision against raising the minimum wage?

What is the single most significant contribution : ENGR 111 - what is the single most significant contribution that engineers have made for the betterment of mankind? Prepare a brief report supporting your opinion.

User Account

All Pages