18. | Sociology: Ethics The onetime fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party, and then returned the purchase? This is called a oneime fling. About 10% of all adults deliberately do a onetime fling and feel no guilt about it (Source: Are You Normal?, by Bernice Kanner, St. Martin's Press). In a group of seven adult friends, what is the probability that (a) no one has done a onetime fling? (b) at least one person has done a onetime fling? (c) no more than two people have done a onetime fling?

Q: 1. Nationally, 29% of high school students report riding in a car driven by someone who had been…

A: Given Data: p^=3041214=0.2504   Null and Alternate Hypothesis: H0: p=0.29 HA: p<0.29

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A: Statement which is unbiased is

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A: The study is observational because it does not apply  treatment to adults.

Q: 10. The infamous psychologist, Dr. Visegrips, claims that his secret sleep audio program cause…

A: Given : Person A B C D E Pretest 68 69 74 71 65 Postest 70 68 75 72 68

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A:

Q: 6. A survey is sent out to 1,000 participants. They are each asked two questions: Do you have a…

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A: Given that.   X~N( μ , ?^2 )     Z-score =( x - μ )/?

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A:

Q: Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good…

A:

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A: We want to variance and standard deviation

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A: Solution: Let X be the number of times SAT was taken. From the given information,

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A: 2017 10-19 15-24 25-34 >34 Total M-F M-M Both          8 19 6 84 315 197 629…

Q: 2. A hot topic of debate is whether the legal driving age should be raised to eighteen. From a…

A:

Q: 15.1 #4

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A: From given table, Total = 721769+601325+166736+22299+6730 = 1,518,859

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A: Given that: positive predictive value (ppv) =  { TP / TP + FP} TP = 1339370 FP = 4479849.

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A: a)The pooled variance for the two samples is obtained as follows:

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A:

Q: A survey of recent college graduates yielded the following information: 59 graduates earned a…

A: The number of graduates earned a degree in mathematics is n(M) = 59.

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A: We will calculate percentage of 700 out of 15500 if it becomes 4% then we can agree.

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A: * ANSWER ::-  (1)

Q: 19. Suppose that you read an article about a study showing that senior citizens who get the flu shot…

A: The article shows that senior citizens who get the flu shot are 27% less likely to be hospitalized…

Q: In a high school with 1,500 students, which would be the best way to select a random sample of…

A: The data asked to collect is bout music preferences.

Q: You own a call centre that sells appliances (such as fridges, washing machines, televisions, small…

A: Call Center dealing with Electronic appliances is very well directly linked with the season and the…

Q: A survey of 526 adults aged 18-24 year olds was conducted in which they were asked what they did…

A:

Q: 2) Minnesota's Best High School found that last year they did not have enough seats or room for all…

A: Solution: It is needed to identify the the population of interest, parameter of interest and sample.

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A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

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Q: A survey of 523 adults aged 18-24 year olds was conducted in which they were asked what they did…

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Q: Nationally,  38%  of  fourth-graders  cannot  read  an  age-appropriate  book.   The  following…

A: Solution: Let X be the age of randomly selected child. From the given information,

Q: Please see picture

A: Let A be the event that a lot has 5 defective parts and B be the event that a lot has 2 defectiven…

Q: 1. A local government official observes an increase in the number of individuals with…

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Q: 9. In order to investigate a rumor that there is a greater than expected number of girls among the…

A: Hypotheses:Denote p as the true population proportion of girl children of chemists.The chemistry…

Q: cigarettes, 101 drank alcohol regularly and used illegal drugs, 106 smoked cigarettes and a used…

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A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.