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

Finance
1.2K views

(IRR calculation?) Determine the IRR on the following? projects: a. An initial outlay of ?$11,000 resulting in...

Civil Engineering
1.2K views

2. How can we reduce the number of private vehicles in the city, and what are...

Electrical Engineering
1.2K views

From your previously gained knowledge of electronic elements (including introduced semiconductor elements), suggest which elements could be...

Physics
1.2K views

A straight conductor carrying current i splits into two parts as shown in the figure...

Basic Math
1.2K views

Anne took a $778,000 mortgage. The 30-year mortgage has a 3.25% nominal annual interest rate,...

Calculus
1.2K views

The volume of a right circular cylinder of radius r and height h is V...

Algebra
1.2K views

di de T d P Maximum Minimum 78 Domain Range Intervals of Increase Intervals of...

Accounting
1.2K views

The charter tuzoan be, the comery a 300.000 11.copar pretend to 4 600.000 home common...

Accounting
1.2K views

Chapter 19 Cash Management at Webb Corp. Input Area: Output: for help with this, see...

Accounting
1.2K views

Harris Fabrics computes its plantwide predetermined overhead rate annually on the basis of direct labor-hours....

Accounting
1.2K views

Which of the following is not a change introduced by the Sarbanes-Oxley Act? Management evaluate...

Accounting
1.2K views

E12.18(LO 6,10) An icon reads, Video. (Intangible Impairment) The following information is...