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Author Question: A study on the relationship between vertex baldness and heart attacks in men reported that For any ... (Read 78 times)

Cooldude101

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on: Jul 24, 2018
A study on the relationship between vertex baldness and heart attacks in men reported that For any vertex baldness compared with no baldness, the age-adjusted relative risk of heart attack was 1.4 (95 CI, 1.2 to 1.9).. Based on this, it can reasonably (with 95 confidence) be concluded that
 a. men with any baldness are between 1.2 and 1.9 times more likely to have a heart attack than men of the same age with no baldness.
  b. men with no baldness are between 1.2 and 1.9 times more likely to have a heart attack than men of the same age with any baldness.
  c. the percent of men with any baldness likely to have a heart attack is between 1.2 and 1.9.
  d. the risk of having a heart attack for men with no baldness is not significantly different from the risk of having a heart attack for men with any baldness.

Question 2

At a small college somewhere on the East coast, 20 of the girls and 30 of the boys smoke at least once a week. Independent random samples of 75 girls and 100 boys are to be selected and the proportions of smokers in the samples are to be calculated. What is the mean of the sampling distribution of the difference in the sample proportion of girl smokers and the sample proportion of boy smokers?


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moormoney

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

A

Answer to Question 2

0.10


Cooldude101

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

mjenn52

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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