High School

A study reported in the May 17, 2012 issue of The New England Journal of Medicine followed people for an average of 13 years. It found that people who consumed two or more cups of coffee a day were less likely to die during the course of the study than those who drank no coffee.

a. Was this study a randomized experiment or an observational study?
b. Based on this study, can it be concluded that drinking coffee causes people to live longer?

Answer :

Answer:

A study reported in the May 17, 2012 issue of The New England Journal of Medicine followed people for an average of 13 years and found that people who consumed two or more cups of coffee a day were less likely to die during the course of the study than those who drank no coffee.

Was this study a randomized experiment or an observational study?

The above study is randomized experiment

Based on this study, can it be concluded that drinking coffee causes people to live longer?

Yes, due to the inference from the research study above. it could be deduced that coffee enhances or improves life span than people without taking coffee as it was established during the 13 years of the research

Explanation:

Final answer:

The study in question is an observational study, which means it observes outcomes without manipulating any variables.

Explanation:

The study reported in The New England Journal of Medicine, which followed individuals for an average of 13 years, is an example of an observational study. This type of study observes and records behavior without manipulating any variables, unlike a randomized experiment where subjects are randomly assigned to different groups with one or more being treated or controlled.

Based on the nature of the observational study, it can be somewhat stated that drinking coffee causes people to live longer. Due to the inference from the research study above. it could be deduced that coffee enhances or improves life span than people without taking coffee as it was established during the 13 years of the research