QUESTIONS 6-10. Data in the table below were collected in a case control study of breast cancer andregular intake of nonsteroidal anti-inflammatory drugs (NSAIDS) among women in the United Statesfor five years or more. Answer questions 6-10 based on these data.StatusCasesControlRegular Intake of NSAIDS 200300No Regular Use of300200NSAIDS6. What is the odds of regular NSAID intake among the cases?O 0.40O 0.67O 0.200.60

Answered: Image /qna-images/answer/1ddeabe9-f6c7-48a2-9403-0d641d2f2006.jpg

Answered: QUESTIONS 6-10. Data in the table below…

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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Example 2: Is there reason to believe that a relationship exists between heights of fathers and the heights of their sons? To answer this question, use the following data in Figure 10.4, obtained from a random sample of 10 men and their sons. Test at the 5% level of significance. 1 2 3 4 5 6 7 8 9 10 Father_Height 65 64 68 73 72 67 71 75 70 69 Sons_Height 66 63 SNKENKS 69 72 73 66 72 75 69 70 Figure 10.4 Heights of 10 randomly selected men and their sons.
A study is run to estimate the incidence of atrial fibrillation (AF) in men and women over the age of 60. Development of atrial fibrillation was monitored over a 10-year follow-up period. The data are summarized below. Using this data, compute the cumulative incidence of AF in men and in women, the relative risk of AF incidence comparing men to women, and the odds ratio of AF incidence comparing men and women. Developed AF Did not Develop AF Men 120 6453 Women 86 7074
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QUESTION 2 Cigarette smoking. In 2002, the prevalence of cigarette smoking among Americans was 21.1%. Data on prevalent smoking in n=3,536 individuals who participated in a research study indicated that 482/3,536 = 13.6% of he respondents were currently smoking at the time of the study. Suppose we want to assess whether the prevalence of smoking is lower among those in this study than in the rest of the country Is there evidence of a statistically lower prevalence of smoking in the research study as compared to the prevalence among all Americans? Explain your answer. TTTT Paragraph v Arial 3 (12pt) v=,三.T- ロiA 三=== ST T 4 1¢ OS. S Mashups Tce@ 曲 HTML CSS Click Save dnd Submit to save and submit. Click Save All Answers to save al answers, Save All A 耳.0 W 99+ HEWLET T-PACKARD
How Much Older Are Husbands? Exercise 2.213 introduces a dataset giving the ages of the two people getting married for a sample of 105 marriage licenses. All of the couples in the sample were male-female couples. We see in Exercise 6.272 that the average age of husbands is greater than the average age of wives. Here, we wish to estimate how much older husbands are than their wives. Because this is paired data, we answer this question by first finding the difference in ages (Husband’s age minus Wife’s age) for each couple. For the 105 differences, the mean difference is 2.829 years with a standard deviation of 4.995. Find a 95% confidence interval for the mean difference in ages between a husband and a wife. Round to three decimal places.
8:55 1 1 Student A imperial.instructure.com Experiment 1: You believe that caffeine can improve the capacity of short-term memory (STM). It is widely known that STM capacity 7 items (m=7)on average with a standard deviation of 2 items (s=2). You randomly sampled n=8 participants and have then drink a large quantity of coffee. Fifteen minutes later you administer a STM test to each participant and measure the number of items remembered. The data are shown below. Use these data to answer the following questions. Excel should be used to obtain the sample mean, standard deviation and standard error. Perform a 2-tailed z-test with a=0.05 to determine if caffeine influences memory. Number Participant of items 1 2 9 3 7 4 6 6 7 7 8 9
Question 5, 10.4.57
Question 10
Section 3.1, question 4
Is there a statistically significant difference between males and females in terms of hiring and promotions? The proportion of each sex that says they were hired or promoted in the last year is reported below. Results are from a nationally representative sample. Round answers to the second decimal.
Suppose the round-trip airfare between Boston and Orlando follows the normal probability distribution with a mean of $387.20 and a standard deviation of $68.50. What is the probability that a randomly selected airfare between Boston and San Francisco will be between $325 and $425? Multiple Choice 0.5275 0.1548 0.2650 0.3875
Question: A region's department of transportation is deciding whether to increase overnight traffic patrols for a stretch of expressway within the region. The residents who live near the expressway have complained that drivers travel faster at night than during the day. Several years ago, the department tested the claim that the population mean speed of drivers who travel on that stretch of expressway at night is greater than the population mean speed of drivers who travel during the day. Although the results were inconclusive, the department has access to the population standard deviations. The department assumes that the population standard deviation is 4.11 mph for drivers traveling at night and 3.92 mph for drivers traveling during the day. The department decides to conduct the test again by installing an automated speed gun on the stretch of expressway that randomly selects vehicles and records their speed. One sample contains the speed, in miles per hour, of the cars driving…

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