If 33 live births per 1,000 per year result in twins, what is the probability of getting more than 0.15% twins per year in a random sample of 450 live births?

Q: employees in an office wear eyeglasses. 33 have single-vision correction, and 8 wear bifocals. If…

A: From the given information, Total number of employees = 41 Number of employees with single vision…

Q: If the population proportion is 0.90 and a sample of size 64 is taken, which is closest to the…

A: Given: Population proportion (P)=0.90 Sample size (n)=64

Q: Approximately 17​% of Americans have completed tertiary education​. Consider a sample of 10…

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

Q: TYPE  Of DOG   Purebred mixed TOTAL Leas than $100 19 21 40 $100 or More 35 15 50 TOTAL 54 36 90…

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Q: It is estimated that 35% of households own a riding lawnmower. A sample of 15 households is studied.…

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Q: Suppose 48% of the banks in Switzerland are private organizations.   If a sample of 484 banks is…

A: When the sample size is large enough we can use the normal approximation by virtue of the Central…

Q: Supposing 47% of the population has a college degree. If a random sample of size 460 is selected,…

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Q: 20 Four out of five Filipinos under the age of 30 eat rice for breakfast. If a random sample of 15…

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Q: The Hawkins Company randomly samples 10 items from every large batch before the batch is packaged…

A: It is given that the Hawkins Company randomly select 10 items as a sample (n) from every large batch…

Q: The lifetimes of two items A and B are independent exponential random variables with respective…

A: Exponential Random Variable              The exponential random variable helps to…

Q: A research study uses 800 men under the age of 60. Suppose that 40% carry a marker on the male…

A: From the given data P=40%=0.40

Q: According to a survey, 10% of Americans are aftaid to fly. Suppose 1,100 Americans are sampled.…

A: From the given information, consider X be a random variable binomially distributed with parameter…

Q: The CEO of TikTok thinks that 75% of users are under the age of 30. A simple random sample of 100…

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Q: Suppose 57% of the population has a college degree. If a random sample of size 770 is selected,…

A: the pdf of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: An opinion poll asks a sample of 1000 adults whether they favor giving vouchers for education. If…

A: From the provided information, Sample size of adults (n) = 1000 48% of the population favours the…

Q: A researcher believes that 4%4% of females smoke cigarettes. If the researcher is correct, what is…

A: Where,

Q: Based on historical data, your manager believes that 33% of the company's orders come from…

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Q: 2. A recent survey asked 100 people if they thought women in the armed forces should be permitted to…

A: There are two categories which are gender and response. The response is whether women in armed…

Q: A marketing firm would like to test-market the name of a new energy drink targeted at 18- to…

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Q: A public interest group hires students to solicit donations by telephone. After a brief training…

A: (a) Obtain the probability that at least 2 of the 5 will give up in the first two weeks. The…

Q: i. Suppose in a district grade 1 through grade 5, 60 percent of the population favor a particular…

A: Hey, since there are multiple subparts posted, we will answer the first three subparts. If you want…

Q: A company employs the following workers:   Part-time Full-time Casual Total Men 12 76 25 113 Women…

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Q: Researchers suggest that 8.5% of females in Scotland have red hair. Approximately 10% of Scottish…

A: Consider that event A denotes the female population and event B denotes the people with red hair.

Q: It is known the 60% of toddlers have too much screen time. A randome sample of 8 toddlers were…

A: Ans - Given, 60% of toddlers have too much screen time. Using binomial distribution  With parameter…

Q: A university's English capstone exam scores have µ = 88 and o = 10. What is the probability tha a…

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Q: 11,12,13

A: 11. Consider X be a random variable which follows normal distribution indicates the number of…

Q: It is estimated that 55% of households own a riding lawnmower.  A sample of 20 households is…

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Q: It has been estimated that 43% of business graduates believe that a course in business ethics is…

A: Given : sample size n = 80 p = 0.43

Q: A study reports that 36​% of companies in Country A have three or more female board directors.…

A: It is given that p=0.36 and n=100.

Q: A marketing firm would like to test-market the name of a new energy drink targeted at 18- to…

A:

Q: 10. A movie theatre estimated that when a random ticket holder is VIP, there is a 1/7 chance that…

A: Given information: PPerson will be over 30 years old=17PWomen=25

Q: #01. In a recent year, about 22% of Americans 18 years and older are single. What is the probability…

A: The mean of the binomial random variable obtained by the formula μ=np, where (n) is the number of…

Q: In a survey of U.S. adults with a sample size of 2033, 300 said Franklin Roosevelt was the best…

A: As per our guidelines, we are allowed to answer three sub-parts only. Thanks Sample size , n = 2033…

Q: 10. A committee of size 5 is to be selected at random from 3 women and 5 men. The probability…

A: Given Data: Let X represent the number of women on the committee n=5 Probability of women(p)=Number…

Q: Employment data at a large company reveal that 55 % of the workers are married, that 41 % are…

A: these are the correct answers provided by us

Q: In a of the population. It is known that 20 per cent of the males and 5 per cent of the females are…

A: Given : P(Male) = 0.5 P(Female) = 0.5 U = Unemployed , E = Employed P( U | Male) = 0.2 P(U | Female)…

Q: Alex makes mistakes in a with an average of 1.2 mistakes per class. In a given class, what is the…

A: Given that  Average =λ=1.2 Here we use poisson probability distribution.  P(X=x) =e-λ*λx/x!       X=…

Q: Suppose 58% of the registered voters in a country are Republican. If a sample of 570 voters is…

A: As given,  58% of the registered voters in a country are Republican. This implies  P = population…

Q: It is estimated that 45% of households own a riding lawnmower.  A sample of 15 households is…

A: we want to find the probability that exactly 7 of these on a riding lawnmower

Q: In responding to a survey question on a sensitive topic (Have you ever tried marijuana? Have you…

A: Suppose 80% of population have not yet tried marijuana and all of those individuals will truthfully…

Q: 11. Survey on Concern for Criminals - In a survey, 3 of 4 students said the courts show "too much…

A: Given: Sample size, n=7 Probability of students said that, courts show "too much concern" for…

Q: 21 Suppose it is known that 40% of Americans own an iPhone. If a random sample of 60 Americans were…

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Q: Suppose 49% of the registered voters in a country are Republican.   If a sample of 701 voters is…

A: Given information: It was stated that 49% of the registered voters in a country are Republican. The…

Q: The 2010 census found that 13.9% of adults in the United States identified themselves as being of…

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Q: a) What is the probability that a part is defective? Ans: 0.2701 b) What is the probability that…

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Q: Show all values of n, p, and x for full credit! A recent study shows that 60% of all adults in the…

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Q: Based on the most recent census, it is known that 62% of the adult population of the island of Gwark…

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Q: Suppose that 30 percent of an adult population have an infectious disease and 40 percent have a…

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Q: Suppose we observe 84 alcoholics with cirrhosis of the liver, of whom 29 have hepatomas—that is,…

A: Giventhe risk of hepatoma among alcoholics without cirrhosis of the liver is 24%. a)True rate of…

Q: Suppose we observe 84 alcoholics with cirrhosis of the liver, of whom 29 have hepatomas—that is,…

A: Obtain the probability that one observes exactly 29 alcoholics with cirrhosis of the liver who have…