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 is the propability at most 6 consume caffiene and smoke?

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

A:

Q: In October 2017, the Gallup Poll asked a sample of 10281028 U.S. adults, "Are you in favor of the…

A: Margin of error: It is the vary of values below and higher than the sample data point in a…

Q: Nationally, 60% of American own American cars, 29% of Americans own Asian cars, and the remaing…

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

Q: One pair of students ended up with a significant difference from expected, as their coin tosses…

A: When the sample size is quite large according to central limit theorem the sample will follow a…

Q: A report from the Center for Science in the Public Interest-a consumer group based in Washington,…

A:

Q: what percentage of online shoppers visited either OHaganBooks.com or a competitor?

A: To gauge the effectiveness of the OHaganBooks.com site, you recently commissioned a survey of online…

Q: A researcher conducts an experiment comparing two treatment conditions with 20 scores in each…

A: Given, A researcher conducts an experiment comparing two treatment conditions with 20 scores in each…

Q: Of 52 students, it was found that 15 were commuters. If one-quarter of the female students and…

A: Let, x be no of male students y be no of female students Given, x+y=52  -->1 15 were commuters.…

Q: Parents are often faced with the decision of whether to keep a sick child home from school. Many…

A: Given that, Parents are often faced with the decision of whether to keep a sick child home from…

Q: In a study to estimate the proportion of smokers among the residents in a certain city and its…

A: To testH0:p1=p2H1:p1≠p2

Q: A study claims that the combination of vitamin C with vitamin E is more effective for preventing th…

A:

Q: 2. A study found that 60 percent of college students say they are housing insecure, while 18 percent…

A: Given

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: Suppose a marketing company did do a survey. They randomly surveyed 200 households and found that in…

A: Given data, n=200 x=120 Population proportion p=?

Q: A labour analyst surveys a random sample of 40 females and 40 males who are currently not working…

A:

Q: Suppose the marketing company did a survey. They randomly surveyed 145 households and found that in…

A: Solution As per guidelines we answer the three subparts only.

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 a survey of 12,344 U.S. college students and 6,729 Canadian college students, Kuo, Adlaf,…

A: Introduction: A survey research design is a design in research, where the researcher conducts a…

Q: A random sample of 250 undergraduate students from a large university was found to contain 67…

A:

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: Could owning a cat as a child be related to mental illness later in life? Toxoplasmosis is a disease…

A: Given : x1 = 136x2 = 220n1 = 262n2 = 522

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: A USU Today survey found that of the gun owners surveyed 275 favor stricter gun laws.  The survey…

A: The hypotheses are given below: Null hypothesis: H0:p=0.50 Alternative hypothesis: H1:p>0.50. It…

Q: In another Harris poll, adults were asked if they are in favor of abolishing the penny. Among 200…

A: From the given information,                        Sample size (n) =200 Probability of success…

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

A: If the value of sample size is more than 30, then we say that it is a large sample test. Once we…

Q: In an exit poll of 625 scientifically and randomly selected voters, 340 expressed support for…

A: Given data, n=625 x=340 sample proportion(p)=?

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: A survey is conducted on the use of Facebook of adults in the United States, where 12,000 adults are…

A: Population of a survey means the entire group on which we are taking survey. Sample is a specific…

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

A: Given Solution:

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: A research group conducted an extensive survey of 3181 wage and salaried workers on issues ranging…

A:

Q: At Sundae King, 6 of the last 10 sundaes sold had nuts. Considering this data, how many of the next…

A: We have to find correct answer

Q: le of teenage drivers living in Dover City for H0: p = 0.50 and Ha: p < 0.50, where p is the…

A: Given: Hypothesis: H0 : p=0.50Ha : p&gt;0.50 Sample size, n = 150 Level of significance, α=0.05 Part…

Q: You have a total of 90 participants in your matched-pair design study. Your degrees of freedom would…

A: It is given that the study is matched-pair design. The total number of participants is 90. Degrees…

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: You have a total of 100 participants in your matched-pair design study. Your degrees of freedom…

A: It is given that the total participants in matched pair design study is 100. That is, n1+n2 =100.

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 sociologist sampled 200 people who work in computer-related jobs, and found that 42 of them have…

A:

Q: A researcher conducts an experiment comparing two treatment conditions with 10 scores in each…

A: A researcher conducts an experiment comparing two treatment conditions with 10 scores in each…

Q: 2. A study found that 60 percent of college students say they are housing insecure, while 18 percent…

A: Given:- A study found that 60 percent of college students say they are housing insecure, while 18…

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

A:

Q: How many independent variables entered in the overall model and was/were not able to enter? What is…

A: We have given that the summary data in table form of the model.

Q: People with headaches are randomly divided into two groups. One group gets pain medication, and the…

A: Experimental Study: If some treatments are applied on the individuals in order to observe the…

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: The percentage of 12- to 17-year-olds who reported talking at least once in the past year with their…

A: Provided information is, the percentage of 12 – 17 years old who reported talking at least once in…

Q: We are interested in determining if absences from a class affect your overall class grade. The…

A: Simple linear regression model: A simple linear regression model is given as y^ = b0 + bx + e…

Q: On a particular night, a baseball stadium sells 60% of its seats, and of those, 15% do not end up…

A: According to the provided data, 60% of the seats are booked and 15% of these do not end up showing,…

Q: ences the outcome of 12. Brunt, Rhee, and Zhong (2008) surveyed 557 under- graduate college students…

A:

Q: The manufacturer of a new racecar engine claims that the proportion of engine failures due to…

A: Given data : x1= 14.0 n1= 135 x2= 8.0 n2= 175