Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. text book: essentials of biostatistics in public h

Text book: Essentials of Biostatistics in Public Health 3 ed. by Lisa Sullivan. Instructor provided problem: An...

90.2K

Verified Solution

Question

Basic Math

Text book: Essentials of Biostatistics in Public Health 3 ed. byLisa Sullivan.

Instructor provided problem: An observational study is conductedto compare experiences of men and women between the ages of 50-59years following coronary artery bypass surgery. Participantsundergo the surgery and are followed until the time of death, untilthey are lost to follow-up or up to 30 years, whichever comesfirst. The following table details the experiences of participatingmen and women. The data below are years of death or years of lastcontact for men and women. Estimate the Estimate the survivalfunctions for each treatment group using the Kaplan-Meier approach.Test if there is a significant difference in survival betweentreatment groups using the log rank test and a 5% level ofsignificance.

Men

Women

Year of Death

Year of Last Contact

Year of Death

Year of Last Contact

5

8

19

4

12

17

20

9

14

24

21

14

23

26

24

15

29

26

17

27

19

29

21

30

22

30

24

30

25

30

Answer & Explanation Solved by verified expert
3.6 Ratings (461 Votes)
aWe assume that censoring of data is done after the death occurs Terminology tj Time of jth death dj No of death at tj nj No of people    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Solve 4 questions of quiz. each of them gives 0.25 point 1. Show that the following...

Basic Math
Q

Your shipment is not reported correctly. list all options for you to correct this problem and...

General Management
Q

3 2 f x 4x 3x

Calculus
Q

ey inter pt 2 y 2 5 3 5 AY 1 A O 5 244...

Algebra
Q

tem Product A Product B Product C Sale mix 5 3 2 ...

Accounting
Q

Question 6 (1 point) Whether a cost behaves as a fixed cost or as a...

Accounting
Q

Select a small firm such as a florist shop, building contractor, super market, tooling workshop,...

Accounting
Q

If sales equal $331,760, variable expenses equal $200,000, and the degree of operating leverage is...

Accounting
Q

Help Save & Exit Submit MC Qu. 109 Sparky Corporation uses the weighted-average... he iolouwing...

Accounting
Q

An investor owns shares of XYZ stock that currently are worth $10,000. The stock is...

Finance
Q

Calculating the Predetermined Overhead Rate, Applying Overhead to Production At the beginning of the year,...

Accounting
Q

Given a stated future value at Year 12 and an annual percentage rate of 7...

Finance