5) Compute the odds ratio by category of daily cigarette consumption, comparing each smoking category to nonsmokers.6) Interpret these results. Table 3. Most recent amount of cigarettes smoked daily before onset of the present illness, lung cancer cases andmatched controls with other diseases, Great Britain, 1948-1952.Daily numberof cigarettes01-1415-2425+All smokersTotal# Cases75654453401,3501,357# Controls617064081821,2961,357Odds Ratioreferent

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Answered: 5) Compute the odds ratio by category…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The histogram below gives the length of service of members of the Department of English at a particular university. The classes, in years of service, are 0−−4.9, 5−−9.9, etc., and the vertical axis represents the number of faculty. 1) What percent of the department faculty have less than 15 years of service? 2) If a member of the department is chosen at random to serve on a university committee, what is the probability (in decimal form) that the chosen representitive will have between 5 and 45 years of service? 3) What is the probability the representative above will have less than 20 years of service given that the person has less than 25 years of service?
The income of residents of Chicago, IL has a bell shaped and symmetric histogram, with a mean of $65,000 and a S.D. of $13,000. 1) What percentage of residents have an income more than $78,000 or less than $52,000? 2) what percentage of residents have an income between $39,000 and $91,000? 3) What percentage of residents have an income less than $104,000? 4) What percentage have an income more than $65000? 5) Less than $26,000 Hint: you need to draw a curve for each part 1-4, and calculate the mean ± 1, 2, 3 S.D.
The following data represent the number of siblings (brothers and sisters) in the families of 20 students who were surveyed. O siblings = 2, 1 sibling = 3, 2 siblings =7, 3 siblings = 2, 4 siblings = 2. What is the probability of randomly selecting a student with 2 or more siblings? Input three-decimal fraction or percentage. Answer:
. If tossing a loaded coin gives heads 60% of times, what is the likelihood (probability) of observing heads 50 times or fewer out of 100 tosses? 12 The probability of observing heads 50 times or fewer out of 100 would be 0.03 or 3 percent. use excel.
Is the following interpretation of the odds ratio true or false? The odds of having a stoke are 1.93 times higher in men who smoke than in men who do not smoke Stroke Smokers Yes No Total Yes 171 3,264 3,435 No 117 4,320 4,437 Total 288 7,584 7,872
8) Given the following table with eye color and hair color for a sample of 592 people... Black hair Brown hair Blond hair 16 10 Red hair Total Green eyes Hazel eyes Blue eyes Brown eyes Total 29 14 14 15 54 84 119 20 17 26 94 68 a) What percent of people with brown hair have blue eyes? b) What is the probability someone with green or hazel eyes has red hair? 102 F Par 99+
Please answer part a-d with correct answer.
Suppose every student in a class is surveyed and it is reported that 75% of the class plans to take another math class. Is this an example of descriptive or inferential statistics? Explain
b. What is the median giraffe height? ft. c. What is the Z-score for a giraffe that is 19 foot talL? d. What is the probability that a randomly selected giraffe will be shorter than 18.7 feet tall? e. What is the probability that a randomly selected giraffe will be between 19 and 19.8 feet tall? f. The 85th percentile for the height of giraffes is ft.
Use the following data to calculate the expected frequencies for each category. fe Type fo A B Total 190 320 215 325

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5) Compute the odds ratio by category of daily cigarette consumption, comparing each smoking category to nonsmokers. 6) Interpret these results.