3- According to nerdwallet.com, the average household mortgage debt was $156,333 in August 2015. Suppose that the current distribution of mortgage debts of all U.S. households has a mean of $156,333 and a standard deviation of $36,000. Find the probability that the current average mortgage debt of a random sample of 144 U.S. households is a. less than $152,400 b. more than $160,000 c. $152,000 to $160,000

Q: Q2. According to a PNC Financial Independence Survey released in March 2012, today's U.S. adults in…

A:

Q: The dean of a business school claims that the average monthly income of his school's BS in Business…

A: Given, μ=24700σ=4100n=50

Q: 2. Medical research has concluded that people experience a common cold roughly two times per year.…

A: GivenMean(μ)=160standard deviation(σ)=40

Q: The mean selling price of senior condominiums in Green Valley over a year was $215,000. The…

A: Note: Thank you for the question. Since multiple subparts are posted, according to our policy, we…

Q: (a)What is the probability that at least 5 of the students are first generation college students?…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: A.What is the mean and standard deviation of the distribution? B.What is the probability that…

A: According to the answering guidelines, we can answer only three subparts of a question and the rest…

Q: what is the probability that the sample mean will be between 350,000 and 365,000?

A: Given that Sample size n = 100 Population mean = 345800 Population SD = 90000

Q: Assume the average attendance of a college game is normally distributed with a population mean of…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The Economic Policy Institute periodically issues reports on wages of entry level workers. The…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks   a) What is the…

Q: About 50% of all federal inmates are serving time for drug dealing. A random sample of 16 federal…

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

Q: The average public high school has 468 students with a standard deviation of 87. If a public school…

A: Given, mean=μ=468 and standard deviation=σ=87.

Q: What is the probability According to a report by Scarborough Research, the average monthly household…

A: Given that

Q: 2. A study by Quadrant Information Services commissioned by Insure.com calculated auto insurance…

A: 2) Let X denote the annual auto insurance rates in the united states and it follows normal…

Q: 5. A Nielsen study indicates that mobile subscribers between 18 and 24 years of age spend a…

A: From provided information, let X be variable that ACNielsen study indicates that mobile subscribers…

Q: A road averages 2,785 vehicles per day with a standard deviation of 585 vehicles per day. A traffic…

A: Let X be the random variable from normal distribution with average or mean (μ) = 2785, standard…

Q: The Bank of Hawaii reports that 7% of its credit card holders will default at some time in their…

A: It is a binomial distribution, as either the cardholder will default, or it won't, and the…

Q: q1 -For borrowers with good credit scores, the mean debt for revolving and installment accounts is…

A: 1) Given that.   X~N( μ , ?^2 )   μ=15015    , ?=3540   Z-score =( x - μ )/?   NOTE:- According to…

Q: Cititon Forest contains a population of 297 chupacabra, whose masses have a mean of 40.1 kg and a…

A: Given that.   X~N( μ , ?^2 )   μ=40.1  , ?=8.3  , n=103   Z-score =( x - μ )/?

Q: 4.According to the children’s growth chart that doctors use as a reference, the heights of…

A: Given,mean(μ)=85standard deviation(σ)=5

Q: 5. The average number of acres burned by forest and range fires in a large New Mexico county is…

A: 5) Given Information: Mean μ=4300 Standard deviation σ=750

Q: Annual snowfall in Anchorage, Alaska, is normally distributed with a mean height of 76 inches and a…

A: Given data,μ=76σ=4.7P(71.4<X<80.7)=?

Q: 2. The average daily jail population in the New Bilibid prison in Muntinlupa City is 36,295. If the…

A: The average population of jail is 36,295. The standard deviation of the population in jail is 3760.

Q: According to a government study, 15% of all children live in a household that has an income below…

A: The binomial distribution gives the probability of number of successes out of n trials in a series…

Q: 4. The average public elementary school has 468 students with a standard deviation of 87. If a…

A: Here use given step by step solution and normal distribution of sample mean

Q: 9. Brooke Henderson of the LPGA, who just won her second major last weekend, played a round of golf…

A: GivenMean(μ)=21.4standard deviation(σ)=16.6

Q: b. The average commute to work is 25 minutes. If we assume that commuting times are normally…

A: We have to find given probability..

Q: Newborn Elephant Weights Newborn elephant calves usually weigh between 200 and 250 pounds-until…

A: Solution : Given that, The mean weight for newborn elephant calves is 225 pounds and Standard…

Q: ccording to the National Association of Colleges and Employers, the 2015 mean starting salary for…

A:

Q: 5. The average salary of bank managers in a certain city is $91,900 pesos per hour with a standard…

A: Let X be the random variable from normal distribution with average or mean (μ) = $91900 and standard…

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: The average credit card debt carried by undergraduates is normally distributed, with a mean of $3173…

A: The mean is 3173 and the standard deviation is 1120.

Q: According to Neilson & Co adults watch an average of 30 hours of a TV a week. Assume the population…

A: X~N(μ,σ2) μ=30, σ=12 Z=X-μσ/n

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: A report announced that the median sales price of new houses sold one year was $231,000​,and the…

A:

Q: 5)The Internal Revenue Service reports that the mean federal income tax paid in the year was $8040.…

A:

Q: The average age of lawyers is 43.6 years, with a standard deviation of 5.1 years. If a law firm…

A: Here the mean weight of lawyers follows Normal with mean=43.6 and standard deviation=5.1, also the…

Q: 4 Riley is a music DJ. So far, her average playing time per day is 5 hours, with a standard…

A: The random variable X follows normal distribution. We have to find the probability that on the next…

Q: 1. According to a study, the average number of hours of TV viewing per household per week in the…

A: Given mean, μ = 50.4 Standard deviation, σ =11.8 n =42

Q: The Economic Policy Institute periodically issues reports on wages of entry level workers. The…

A: Obtain the probability that a sample of 50 male graduates will provide a sample mean within $0.50 of…

Q: In a certain barangay, LGU distributes "ayuda" benefits to each family with a mean of 3,200 pesos…

A: Let X: ayuda benefits E(x)=3200 n=32 standard deviation of 850 pesos.

Q: The average commute to work (one way) is 25 minutes according to the 2005 American Community Survey.…

A:

Q: i. What are the mean and standard deviation of the total amount of milk and flour in Jim's…

A: Here Take  Random variable  X= no of Cup of Flour in single recipe Y=no of cup of Milk in Single…

Q: Charlotte, North Carolina has a mean annual rainfall of 43 inches, with a standard deviation of 4.2…

A: Solution: Given data Mean(μ) = 43 inches Standard deviation(s) = 4.3 inches Amount of rainfall  is…

Q: Records of a health insurance company show that 30% of its policyholders over 50 submit a claim…

A: 30% of the policyholders over 50 submit a claim during the year. So, the probability that a…

Q: In recent years, the New York Stock Exchange's trading volume has increased. The average daily…

A:

Q: In the study about the family income and their expenditures, families can save an average amount of…

A: Given,mean(μ)=2010standard deviation(σ)=580

Q: According to a PEW Research Center survey, the mean student loan at graduation is $25,000. Suppose…

A:

Q: a) No more than two of them dislike their mother in law? c) What is the expected number of women ()…

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Q: 1-The length of time a domestic flight must wait between gate departure and takeoff taxi at Boston's…

A: Solution: 1. Let X be the length of time a domestic flight must wait between gate departure and…

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.