Depression A study published in the Archives of GeneralPsychiatry examined the impact of depression on apatient’s ability to survive cardiac disease. Researchersidentified 450 people with cardiac disease, evaluatedthem for depression, and followed the group for 4 years.Of the 361 patients with no depression, 67 died. Of the89 patients with minor or major depression, 26 died.Among people who suffer from cardiac disease, aredepressed patients more likely to die than non-depressedones?a) What kind of design was used to collect these data?b) Write appropriate hypotheses.c) Are the assumptions and conditions necessary forinference satisfied?d) Test the hypothesis and state your conclusion.e) Explain in this context what your P-value means.f) If your conclusion is actually incorrect, which type oferror did you commit?
Depression A study published in the Archives of General
Psychiatry examined the impact of depression on a
patient’s ability to survive cardiac disease. Researchers
identified 450 people with cardiac disease, evaluated
them for depression, and followed the group for 4 years.
Of the 361 patients with no depression, 67 died. Of the
89 patients with minor or major depression, 26 died.
Among people who suffer from cardiac disease, are
depressed patients more likely to die than non-depressed
ones?
a) What kind of design was used to collect these data?
b) Write appropriate hypotheses.
c) Are the assumptions and conditions necessary for
inference satisfied?
d) Test the hypothesis and state your conclusion.
e) Explain in this context what your P-value means.
f) If your conclusion is actually incorrect, which type of
error did you commit?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
