BESTION 12the study description below to answer the following questions.A research group is interested in the relationship between alcohol consumption and heart disease in American men over the age of 40 years old. The researchers randomly selected 1913 medical records of men who suffer from heart disease. The researchers recodid not drink, drank moderately, or drank heavily. They found that men who had heart disease tended to drink heavily.Identify the population for the study.Identify the sample for the study.or the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).CParagraphArial10ptTV101T==al||1515№²Y

According to given, a). Population of study= population America over the age of 40 with a heart…

Answered: the study description below to answer…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Matt Gaetz, a health educator, wants to evaluate the effect of a dental film on the frequency with which children brush their teeth. A random selection of 8 children are used for the experiment. First, a baseline of the number of times the children brush their teeth over a month's period is established. Next, the children are shown the dental film and again the number of teeth brushings are recorded for a month. The following data are recorded. Subject 1 2 3 4 5 6 7 8 After Film 28 29 25 30 25 27 28 24 Baseline 25 28 22 30 26 24 25 22 a. What is the null hypothesis? b. What is the alternative hypothesis c. What is your conclusion, using an alpha of 0.05 (2 tailed)?
For each of the following research situations, identify the level of measurement of all variables. Also, decide which statistical applications are used: descriptive statistics (single variable), descriptive statistics (two or more variables), or inferential statistics. Remember that it is quite common for a given situation to require more than one type of application.a. The administration of your university is proposing a change in parking policy. You select a random sample of students and ask each one if he or she favors or opposes the change. You then use the results to estimate the support for the change in the entire student body.b. You ask everyone in your social research class for their highest grade in any math course and the grade on a recent statistics test. You compare the two sets of scores to see if there is any relationship.c. Your aunt is running for mayor and hires you to question a sample of voters about their concerns. Specifically, she wants a profile of voters that…
Are America's top chief executive officers (CEOs) really worth all that money? One way to answer this question is to look at row B, the annual company percentage increase in revenue, versus row A, the CEO's annual percentage salary increase in that same company. Suppose that a random sample of companies yielded the following data: Do these data indicate that the population mean percentage difference in corporate revenue (row B) is different from the population mean percentage increase in CEO salary? Use a 1% level of significance. (A) Are the data statistically significant at level α? Will you reject or fail to reject the null hypothesis? Since the interval containing the P-values has values that are larger than the level of significance, the data are not statistically significant and so we fail to reject the null hypothesis. (a)Since the interval containing the P-values has values that are larger than the level of significance, the data…
Consider the following sample data: 6, 10, 4, 3, 7, 9, 21, and 14. What is the variance? Select one: a. 34.79 b. 33.56 c. 34.21 d. 34.02
A government agency computed the proportion of U.S. residents who lived in each of four geographic regions in a particular year. Then a simple random sample was drawn of 1000 people living in the United States in the current year. The following table presents the results. Region Past YearProportion ObservedCounts Northeast 0.171 150 Midwest 0.245 235 South 0.357 398 West 0.227 217 Send data to Excel Can you conclude that the proportions of people living in the various regions changed between the current year and the past year? Use the 0.05 level of significance and the P-value method with the TI-84 Plus calculator. What the P value?
Researchers want to estimate the percentage of people who thought drinking and driving was a serious problem. Reserchers waited outside a bar to question people. They usually find 11%of bar patrons believe drinking and driving is a serious problem. a. identify the populatin of interest b. identify the sample c. identify the population parameter of interest d. identifywho if anyone was left out of the study
What is one indication that there are paired samples in a data set? Choose the correct answer below. O A. Knowing the value that a subject has in one group gives one no information about the value in the second group. OB. Each observation in one group is coupled with one particular observation in the other group. OC. The researcher is comparing two populations. O D. The researcher is working with two distinct groups in the data set.
Ask a Question | bartleby Karnataka Board Class 11th Stat × Karnataka Board Class 11th Stat × + I selfstudys.com/books/karnataka/state-books/class-11th/statistics/statistics-part-1/328854 34. In a sample study regarding smoking habit in a town, the following data were obtained: Men population = 58% Smokers = 22% Men smokers = 18% 1 Tabulate the above data. Join Whatsapp For Exclusive Content Search 89/100 myhp Join Telegram For Exclusive Content 0 1 x 21:58 ENG IN 20-08-2024 PRE
QUESTION 4 Find the median for the given sample data. The number of vehicles passing through a bank drive- up line during each 15- minute period was recorded. The results are shown below. Find the median number of vehicles going through the line in a fifteen- minute period. 20 22 20 23 23 20 25 22 30 26 26 24 19 26 20 15 10 22 22 22 O 23 22 26 O 21.85 QUESTION 5 Construct a boxplot for the given data. Include values of the 5 -number summary in all boxplots. The weights (in pounds) of 30 newborm babies are listed below. Construct a boxplot for the data set. 5.55.758 5.9 6.1 6.1 63 646.5 6.6 676767K070707.0717272 Save A thmit Click Saue All Answers to save all answers.
QUESTION 8 Find the mode(s) for the given sample data. 20, 38, 46, 38, 49, 38, 49 49 38 39.7 46
The safety director of a large steel mill took samples at random from company records of minor work-related accidents and classified them according to the time the accident took place. Time Number of Accidents Time Number of Accidents 8 up to 9 a.m. 10 1 up to 2 p.m. 11 9 up to 10 a.m. 9 2 up to 3 p.m. 12 10 up to 11 a.m. 12 3 up to 4 p.m. 7 11 up to 12 p.m. 6 4 up to 5 p.m. 11 Click here for the Excel Data File Using the goodness-of-fit test and the 0.10 level of significance, determine whether the accidents are evenly distributed throughout the day. H0: The accidents are evenly distributed throughout the day.H1: The accidents are not evenly distributed throughout the day. a. State the decision rule, using the 0.10 significance level. (Round your answer to 3 decimal places.) b. Compute the value of chi-square. (Round your answer to 3 decimal places.) c. What is your decision regarding H0?
Micah is interested in testing whether college students' levels of gratitude change over the course of the semester. He randomly selects a sample of 100 students and assesses their levels of gratitude at the beginning, and end of the semester. Question 17 options: ANOVA Paired samples t test Independent samples t test Correlation

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