BA students, 70% said that they expect to be promoted within a month after receiving their degree. If this proportion holds for the population, find , for a sample of size 15, the probability that the number of expecting a promotion within a month a

Q: 13. Assuming weights of female athletes are normally distributed with a mean of 140 Ibs and a…

A: Given: Population mean μ=140 Population standard deviation σ=15 Let X be the weights of athlete. X ~…

Q: The number of attempts at shooting goals made by a netballer in a tournament can be modelled by a…

A: Answer: Given that:p=0.35   n=12  now  will  use  Binomial  probability P(X=x)=nx*Px*(1–P)n–x,where…

Q: 1. A shopping mall estimates the probability distribution of the number of stores mall customers…

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Q: A survey showed the following probabilities of having X number of cats per household   X = number of…

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Q: A company đětěrm that on an anhual basIs, the distance traveled per company car is normally…

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Q: 10. The distribution of number of hours worked by volunteers last year at a large hospital is…

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Q: Suppose that for a normal random variable X, we have a mean of µ=10 and a standard deviation of σ=3.…

A: As per guideline expert have to answer first three subpart only.

Q: Suppose that the mean daily viewing time of television is 8.5  hours per household. Use a normal…

A: (a)   Obtain the probability that a household views television between 6 and 9 hours a day.   The…

Q: 1. The average number of milligrams (mg) of cholesterol in a cup of a certain brandof ice cream is…

A: Normal distribution- The study of the normal distribution or Gaussian distribution has multiple…

Q: 1) Consider an investigator is testing to see if different locations are contaminated with a certain…

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Q: ... a) To compute probabilities regarding the sample mean using the normal model, what size sample…

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Q: In the probability distribution to the right, the random variable X represents the number of…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: Suppose that, on average, electricians earn approximately u $54,000 per year in the United States.…

A: GivenMean(μ)=54000standard deviation(σ)=12000sample size(n)=4

Q: 9) If the average yield of a dunum of yellow corn is 800 kg, with a standard deviation of 40 kg, and…

A:

Q: 27. The average number of milligrams (mg) of sodium in a certain brand of low-salt microwave frozen…

A: * SOLUTION :-  (27) The OPTION A (7.64) is correct answer.

Q: Suppose that the mean daily viewing time of television is 8.35 hours per household. Use a normal…

A: We have, The mean daily viewing time of television is 8.35 hours per household and a standard…

Q: 1. The director of admissions at Kinzua University in Nova Scotia estimated the distribution of…

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Q: 1. Study reports that the average person uses 120 liters of water daily. If the standard deviation…

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Q: Below is a partially completed probability model where X represents the number of cars in a fast…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: Suppose the heights of 18-year-old men are approximately normally distributed, with mean 69 inches…

A:

Q: The life expectancy of Timely brand watches is normally distributed with a mean of four years and a…

A: The life expectancy of Timely brand watches is normally distributed with a mean of four years and a…

Q: 1. In a Science test, the mean is 60 and the standard deviation is 6. Assuming the scores are…

A: Note: If the post contains multiple questions only allow to do first question as per guidelines of…

Q: 1) A physical fitness association is including the mile run in its secondary -school fitness test.…

A: It is given that the mean is 440 seconds and standard deviation 40 seconds.

Q: a. Given a random sample of 70 resistors, what is the probability that its mean is between 218 N and…

A: HERE GIVEN, mean = 220 standard deviation = 11   here use central limit theorem

Q: Assume the average price for a movie is ​$7.35. Assume the population standard deviation is ​$0.44…

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Q: 1) a. The number of mobile phones made by Finland has the following probability distribution: 20 2 +…

A: It is been asked to find expected number and standard deviation of mobile phones made by Finland and…

Q: 7. The Real Estate Group NY reports that the mean monthly rent for a one-bedroom apartment without a…

A: Given: μ=2631σ=500n=100

Q: a. If you just observed an earthquake with a magnitude greater than 7, what is the probability that…

A: Given that major earthquakes greater than magnitude 7, happens 15 times a year on average.

Q: 1. A 100-watt light bulb has an average brightness of 1640 lumens, with a standard deviation of 62…

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Q: At a certain high school, the distribution of backpack weight is approximately normal with mean 19.7…

A: Introduction: A sample of 5 backpacks is randomly selected, each of the selected backpacks is…

Q: d) What is the probability that at most 6 people will use the new machine? e) What is the…

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Q: Suppose that the commuting time on a particular train is uniformly distributed between 50 and 60…

A: The pdf  of the continuous uniform distribution is f(x)=1b-a ~a≤x≤b∑(X)=a+b2var(X) = (b-a)212

Q: A certain type of new business succeeds 30 % of the time. Suppose that three such businesses open.…

A: Solution: Let X be the random variable of new business succeeds . The probability of new business…

Q: (A)Find the probability that the disposable income of a resident is more than $45,000. Is this an…

A: Let X denote the per capita disposable income. Given that X follows N(mean = 44000, SD = 2450), then…

Q: The ages of students in a middle school have the following probability distribution: x 12 13 14 15…

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Q: 4. The local pizza parlor prepares more than a hundred of pizzas a day, and the weights may vary.…

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Q: The probability that an individual has​ 20-20 vision is 0.16. In a class of 37 ​students, what is…

A: As per guideline expert have answer first question only dear student please upload other question…

Q: According to the Current Results website, the state of California has a mean annual rainfall of 22…

A: Given that,  The sample size is, n = 45

Q: Dr. Wilson is considering investing a fixed sum of money in each of three business ventures. Assume…

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Q: A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield,…

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Q: According to The World Bank, only 9% of the population of Uganda had access to electricity as of…

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Q: The average cost of college for one year is $26,489 with a standard deviation of $3204. If 36…

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Q: One out of every 5000 individuals in a population carries a certain defective gene. A random sample…

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

Q: 10 It is known that 15% of a large constituency voted for the Working Together Party (WTP) at the…

A: Let there are n trials and each having two outcomes - Success and Failure. The trials are…

Q: 1) A private entity has recorded that the population average of unemployed persons per year in a…

A: From the given information n = 100 μ=230 x=24 σ=2

Q: 1. The average number of milligrams (mg) of cholesterol in a cup of a certain brand of ice cream is…

A: Given,mean(μ)=680standard deviation(σ)=40

Q: 1. The average time a person spends in a library is 30 minutes. The standard deviation is 6 minutes.…

A: Since you have posted multiple questions , we will solve first question for you. To get the…

Q: 31. The amount of cola in a 12-ounce can is uniformly distributed between 11.96 ounces and 12.05…

A: We have to find given probability.

Q: 19. Suppose the Internal Revenue Service reported that the mean tax refund for the year 2017 was…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.