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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3) What proportion of people scored worse than 14 or better than 22, based on the following sample: 20 11 16 26 13 28 15 18 21 14 12 17
The heights (in centimeters) of some randomly selected Men's World Cup soccer players from both Europe and the U.S. are given below. Europe 169 170 171 175 175 175 178 180 181 182 184 185 185 187 189 United States 167 168 169 173 176 176 178 180 180 181 183 183 186 187 187 Is there a difference between the heights of European and American soccer players? What is the test statistic for this test? 0.7399 0.3352 0.3700 0.6648 0.2601
Two sections of statistics are offered, the first at 8 a.m. and the second at 10 a.m. The 8 a.m. section has 25 women, and the 10 a.m. section has 15 women. A student claims this is evidence that women prefer earlier statistics classes than men do. What information is missing that might contradict this claim? Question content area bottom Part 1 Choose the best answer below. A. The professor may be female in one class and male in the other, which could affect the female students' class preference. B. The percentage of female students in the two classes is unknown. There may be more females in the 8 a.m. because there are more students in the 8 a.m. class than the 10 a.m. class. This claim could be true only if the classes were the same size. C. The age and class standing of the students is unknown. Older female students may prefer later classes, so it may be only younger female students who prefer earlier classes. D. No information is…
1. Which of the following are examples of statistics? a) Average weight of all adult dogs.b) The 75th percentile of all adult dog weights.c) The largest dog eats lots of blueberry pizza.d) The weight of the largest dog ever.
The absolute measure of association for a case-control study is the odds ratio. Justify your answer.
In applying statistics, we make decisions with less than 100% certainty (We are not always correct in our conclusion). False O True
(a) Evaluate the probabilities within both binomially distributed and normally distributedthe random variables. Justify with demos.If sick-leave time X used by employees of a company in one month is (very roughly)normal with mean 1000 hours and standard deviation 100 hours, how much time t should be budgeted for sick leave during the next month if t is to be exceeded with probability ofonly 20%.
In order to compare two statistics textbooks, Mr.Marin recommends one book to one class and another book to another class. At the end of the year the classes are each examined; the results out of 100 marks are detailed below.Textbook 144 52 95 76 13 94 83 72 55 81 22 25 64 72 35 48 56 59 84 98 84 21 35 69 28Textbook 265 72 48 63 68 59 68 62 75 79 81 72 39 55 58 52 82 79 55 64 53 58 59 64 66 68 42 37(i) Calculate the mean and standard deviation for each class. (ii) Which class performed better?(iii) Which class was more consistent? (iv) Compute the coefficient of variation for each class. Comment on the results.(v) Construct a stem and leaf for each class.(vi) Compute their lower quartile, upper quartile, interquartile range and median for each class.(vii) Using a graph paper, draw a box and whisker plot for each class. Showing all parameters. Commenting on the distribution of the data set. Hence indicate whether there are outliers.
Definitions. Define each of the following concepts. Where relevant, be sure to say what each is used for. Also, where relevant, give examples. a) Expected Cell Frequencies: b) Scatterplot:
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
A) minor mode b) major mode c) median d) mean
7. Wondering if there is a connection between a person's height and the number of tattoos they have, Mac asks 50 people how tall they are and how many tattoos they have. What type of study was used? a. Experimental b. Observational

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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.