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Author Question: An observational study found that people who listened to classical music regularly had statistically ... (Read 245 times)

jparksx

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on: Jul 24, 2018
An observational study found that people who listened to classical music regularly had statistically significantly lower average blood pressure than those who didn't listen to classical music. Which one of the following headlines is justified?
 a. Classical Music Lowers Blood Pressure.
  b. Listening to Music Lowers Blood Pressure.
  c. Link Found Between Listening to Classical Music and Lower Blood Pressure.
  d. Blood Pressure Level Affects Taste in Music.

Question 2

An observational study found a statistically significant relationship between an explanatory variable and a response variable that surprised the researchers. If you wanted to explore possible explanations, which of the following pieces of information would not be useful?
 a. How many different relationships were tested in the study and how many were statistically significant.
  b. How large the sample size was for the study.
  c. Whether it was a case-control study or not.
  d. A confidence interval for the relative risk.


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blazinlyss

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Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

C


jparksx

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Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

tanna.moeller

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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