Use the following information for parts (a) – (c): The 2 x 2 table below displays the results of a cross-sectional study that investigated the effectiveness of bicycle safety helmets in preventing head injury. The data consist of a random sample of 790 individuals who were involved in bicycle accidents during a specified one year period. i. Calculate the 95% confidence interval for the log of the relative risk ii. Calculate the 95% confidence interval for the relative risk
Use the following information for parts (a) – (c): The 2 x 2 table below displays the results of a cross-sectional study that investigated the effectiveness of bicycle safety helmets in preventing head injury. The data consist of a random sample of 790 individuals who were involved in bicycle accidents during a specified one year period. i. Calculate the 95% confidence interval for the log of the relative risk ii. Calculate the 95% confidence interval for the relative risk
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 37E
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Question
Use the following information for parts (a) – (c):
The 2 x 2 table below displays the results of a cross-sectional study that investigated the effectiveness of bicycle safety helmets in preventing head injury. The data consist of a random sample of 790 individuals who were involved in bicycle accidents during a specified one year period.
i. Calculate the 95% confidence interval for the log of the relative risk
ii. Calculate the 95% confidence interval for the relative risk
![Head Injury Totals
Yes No
Wearing Helmet Yes 19 127 146
No 213
431 644
232 558 790
Totals
Let D = event that a subject has a head injury and E =
event that subject was wearing a helmet.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2348a137-4566-48a7-9766-25c5c25b6aad%2F1dfc0c67-2a48-4198-8f4c-f596f7b0e15e%2F0xnsf4s_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Head Injury Totals
Yes No
Wearing Helmet Yes 19 127 146
No 213
431 644
232 558 790
Totals
Let D = event that a subject has a head injury and E =
event that subject was wearing a helmet.
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