a study is conducted to access the impact of caffeine consumption, smoking, alcohol consumption, and physical activity on cardiovascular disease. suppose that 40% of the participated consume caffeine and smoke. if 8 participate are evaluated, what isthe propability that exactly half of them consume caffeine and smoke?

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A: Given that- P(American car | American) = 0.6 P(Asian car| American) = 0.29 P( non-Asian foreign car…

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A:

Q: Suppose a quarterback's completion percentage for the season is 67.2%. Based on relative frequency,…

A: We have to find Based on relative frequency, is it more likely that he will complete his next two…

Q: There were 254.8 per 100,000 per year Myocardial deaths in the aspirin group compared with 439.7 per…

A: Given:Aspirin group myocadial deaths per 100,000 year =254.8Placebo group myocadial deaths per…

Q: In a certain school district, it was observed that 30% of the students in the element schools were…

A: Let p be the population proportion of students in the element schools were classified as only…

Q: A cohort study was conducted over five years among 200 trial attorneys and general practice…

A: To express the magnitude of association between the lawers exposed to heart disease and not exposed…

Q: A research report from an independent-measures study states that there are significant differences…

A: The degrees of freedom for treatment (k-1) is 3.

Q: A random sample of 1400 Internet users was selected from the records of a large Internet provider…

A: Given data A random sample of 1400 internet users was selected  and asked whether they would use…

Q: A recent random sample of 7 college graduates who found a job reported their GPA and entry level…

A:

Q: archers wanted to determine if language impairment in school wage impairment and 30 sth graders…

A: Experimental study: In these types of studies the researchers introduce an interventions and study…

Q: Assume that half the population is vegetarian so that the chance of an individual being a vegetarian…

A:

Q: In a study of patients on sodium-restricted diets, 55 patients with hypertension were studied. Among…

A:

Q: Because library books are read many times, glue is often applied to the spine of a book to keep the…

A: The correct answer is given below

Q: A researcher is interested in determining if the proportion of children that collect specific type…

A: The null and alternative hypothesis is; H0: The proportion of children that collect a specific type…

Q: A researcher is interested in determining if the proportion of children that collect specific types…

A: The given information is that the proportions of children, 36% of them collect Legos, 19% of them…

Q: n New York City, a study was conducted to evaluate whether any information that is available at the…

A: (a) Obtain the sample size of a preliminary estimate for p is 0.10 with the 95% confidence. The…

Q: Suppose a senator finds that 45% of the United States voters are in favor of abolishing the…

A: z=critical value of 95% confidence interval=inverse normal of 0.95=1.96p=proportion=…

Q: At a TV assembling facility, the Quality Assurance (QA) department tested a random selection of 500…

A: a)   The total number of TV is 6753 out of which 500 TV's are randomly selected during the month…

Q: Based on information from a previous study, r, = 35 people out of a random sample of n, = 104 adult…

A: There are two populations which are Americans who did not attend college and Americans who did…

Q: In a co-educational institution, out of 200 students 150 were boys. They took an examination and it…

A: Given  Total student=200, 150=boys, 120=passed and girls failed=10

Q: Surgery was performed on 492 patients in the Anywhere Health Care Facility during March, and 27 of…

A: Given information: Total number of patients who received a surgery is 492. Total number of death…

Q: A research report from an independent-measures study states that there are significant differences…

A: Given information- We have given a report from an independent- measures study. F(3, 48) = 2.95, p…

Q: In a survey of 1346 adults in a country, 53% said the country's leader should release all medical…

A: A study in which the researcher observes the subjects without any control over the treatments is…

Q: research group conducted an extensive survey of 3113 wage and salaried workers on issues ranging…

A: Solution: Given information: p= 0.47 Population proportion  E= 0.013 Margin of error  α=0.05  Level…

Q: According to the Pew Research Center,on the propotion of the American population who use only a…

A: A)Verifying the conditions:It is given that, the proportion of the American population who use only…

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A: We need to find expected value of desirable penguins Let us find out probability of a desirable…

Q: A new restaurant with 134 seats is being planned. Studies show that 57​% of the customers demand…

A: Given n = 134 p = 0.57

Q: It is believed that in the upcoming election, 65% of the voters in Baguio City will vote or…

A:

Q: According to the Pew Research Center,on the propotion of the American population who use only a…

A: Solution:Part(D):Finding the test statistic value for the hypothesis test for…

Q: A college professor hypothesizes that readers will comprehend more when reading a graphic novel than…

A: The characteristics of the treatment and control groups

Q: According to a home securities company, the highest percentage of home burglaries occur during the…

A: The critique of the study is invalid Since, the data is collected for 10 years of period and…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: Given , Sample size = n = 54 Number of intoxicated driver = x = 35 Sample proportion = p^ = 3554 =…

Q: Suppose a professional basketball player historically makes 39% of his three-point field goals.…

A: In this case, a test is required to see whether three-point goal shooting has improved. Here, the…

Q: a study is conducted to access the impact of caffeine consumption, smoking, alcohol consumption, and…

A: Given data, p=40%=0.4 n=8 Let X be event that they consume caffiene and smoke. P(X<=6)=?

Q: The objective of a community research project is to determine whether women are more community…

A: a) Significance level is 0.05. n = 9 D.F = n - 1 D.F = 9 - 1 D.F = 8 Determine the critical value…

Q: A researcher claims that the percentage of voters that favor voting via absentee ballot is 35%.…

A: It is given that the researcher claims that the percentage of voters that favor voting via absentee…

Q: The grades of a sample of 9 students on a prelim exam (x) and on the midterm exam (y) are shown in…

A: Let X denote the prelim exam Let Y denote the midterm exam Calculation:

Q: The predicted outcome of the 2020 US election was 5/9 in favour of Joe Biden. What is the average…

A: Here we want to Know average information content of this process.

Q: Blank are more representative of a population, but blank are easier to obtain

A: The sample is a set of units that is obtained from a population, which represents the population.…

Q: Only about 10% of all people can wiggle their ears. Is this percent different for millionaires? Of…

A: Here use single proportion z test Only about 10% of all people can wiggle their ears. Is this…

Q: During a country wide investigation the incidence of TB was found to be 1%. In a college of 400…

A: In a college 5 were reported to be affected by the incidence of TB out of a strength of 400(=n1). ∴…

Q: A calibration study needs to be conducted to see if the readings on 15 test machines are giving…

A: Given : Total Machines = 15 We have to select 5 out 15

Q: A scientist studied the spread of AIDS and concluded that 24% of people contracted the disease.…

A: A scientist concluded in a test that 24% of people contracted in the disease. The scientist was…

Q: An article describes a study of the health effects of ozone air pollution on children’s health. Out…

A: It is given that out of 68 children who lived in areas with low ozone levels, 30 missed at least one…

Q: A health journal found that 56.4​% of college students who lived in coed dormitories consumed…

A:

Q: A union’s executive conducted a survey of its members to determine what the members felt the…

A: Given that: Proportion of members who felt job security was an important issue:  PJob security=0.74…

Q: A research group conducted an extensive survey of 3195 wage and salaried workers on issues ranging…

A: Obtain the sample size of a preliminary estimate for p with 0.48 The formula of sample size is,…

Q: A college professor hypothesizes that readers will comprehend more when reading a graphic novel than…

A: Control groups are essential in experimental design.  Treatment group also known as experimental…

Q: According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft,…

A:

Q: In a certain school district, it was observed that 27% of the students in the element schools were…

A: The statement of the problem is “the proportion of only children in the special program is…