3) The monthly household cost for a family has a normal distribution with mean of $4,300 and standard deviation of $220. Plot the probability and distribution functions. b. If the monthly income of the family is $4700, what is the probability that their monthly household cost exceeds their monthly income? а.

Q: If n = 15 and p = .4, then the standard deviation of the binomial distribution is

A: Obtain the standard deviation of the binomial distribution. The standard deviation of the binomial…

Q: Given a normal distribution with a mean of 150 and a standard deviation of 10, what is the…

A: Given,   Mean = 150 Standard deviation = 10

Q: Assuming that the scores of the student in a test are normally distributed with the mean of 40 and…

A: Given data mean =40 ,standard deviation =6

Q: When n≥30 and the population standard deviation is unknown, what is the appropriate distribution? P…

A: Disclaimer: Since you have asked multiple question, we will solve the one question for you. If you…

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: d) What is the probability that the number of drivers will be 10 or more? e) Find the mean and the…

A:

Q: What is the probability that a randomly selected individual with an MBA degree will get a starting…

A: Given:  Let x be the starting salary of individual from normal distribution with mean u= $40000 and…

Q: Given that the length an athlete throws a hammer is a normal random variable with mean 50 feet and…

A:

Q: If an entire population with μ = 60 and σ = 8 is transformed into z-scores, then the distribution of…

A: If an entire population with μ = 60 and σ = 8 is transformed into z-scores, then the distribution of…

Q: Suppose the distribution of the weights of ground beef follows a normal distribution with a mean of…

A: Let X denote the distribution of the weights of ground beef follows a normal distribution with a…

Q: The battery life of a fully charged cell phone is normally distributed, with a mean of 14 hours and…

A:

Q: The mean cholesterol levels of women age 45-59 in Ghana, Nigeria, and Seychelles is 5.1 mmol/l and…

A: Given, The mean cholesterol levels of women age 45-59 in Ghana, Nigeria, and Seychelles is 5.1…

Q: The lifespan of a laptop battery is normally distributed. If the mean lifespan of a battery is 4…

A:

Q: According to government data, the probability that a woman between the ages of 25 and 29 was never…

A:

Q: If an entire population with μ = 60 and s = 8 is transformed into z-scores, then the distribution of…

A: Given X~N(μ,σ) population mean μ=60 population standard deviation σ=8 The formula for a…

Q: Suppose that the mean and standard deviation of plants height are 130 and 42, respectively, if a…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 130, standard…

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

A:

Q: The lifespan of a laptop battery is normally distributed. If the mean lifespan of a battery is 4…

A: Let , X be the lifespan of a laptop battery. X follows Normal distribution with , Mean = μ = 4 years…

Q: The spending at Target is distributed normally with a mean spending of $47.67 and a standard…

A:

Q: Given a normal distribution (X) with mean = 100 and standard deviation (σ) = 10, w hat is the…

A: Let X be the random variable and it follows the normal distribution with mean μ and standard…

Q: Given that X is a normally distributed random variable with a mean of 50 and a standard deviation of…

A: Given that X is a normally distributed random variable with a mean of 50 and a standard deviation of…

Q: 1. If ‘m’ is the mean of a Poisson distribution, the standard deviation is given by ___________

A: We have given that, If mean of Poisson distribution is 'm' then standard deviation is given by?

Q: If the mean and variance of a binomial distribution with parameters (n,p) are 40 and 30…

A:

Q: If one normal distribution has a standard deviation of 5, and another has a standard deviation of…

A: Given that  One normal distribution has standard deviation is 5. Another has standard deviation of…

Q: Answer the following   a. The distribution of weekly incomes follows a normal probability…

A: If the random variable X denotes the weekly income, then we are given that X~N(μ , σ2), where μ =…

Q: If n=10 and p=0.8, then the standard deviation of the binomial distribution is

A: We have given that,  Let x be the random variable with n = 10 and P = 0.8 from the binomial…

Q: me sources report that the weights of full-term newborn babies in a certain town have a mean of 7…

A: Given:  X = Weight of new born babies  X follows normal distribution with mean = 7 pounds and…

Q: (a)    It has been reported that the length of human pregnancies from conception to birth…

A: a)GivenMean(μ)=266standard deviation(σ)=16

Q: Given a normal distribution (x) with mean = 100 and standard deviation () = 10what is the…

A: Given,μ=100σ=10P(X<81 or X>101)=?

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: Suppose you sample one value from a uniform distribution with a = 0 and b = 20. a) What is the…

A: Let the random variable X follows uniform distribution on interval [a = 0, b= 20]   The PDF of…

Q: The state of California has a mean annual rainfall of 22 inches, whereas the state of New York has a…

A: Given data for California : Population Mean,μ = 22 Population Standard Deviation,σ = 4…

Q: The lifetime of a computer circuit board is normally distributed with a mean of 2,500 hours and a…

A:

Q: - If a population with µ =72 and o = 8, the distribution of z-scores will have a mean and standard…

A: Given: Mean = µ = 72 Standard deviation = σ = 8

Q: Given the population of men has normally distributed weights with a mean of 172 lb and a standard…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Given a normal distribution (X) with mean = 100 and standard deviation (σ) = 10,  w hat is the…

A: Given data,μ=100σ=10P(X<81)=?

Q: According to a survey of the top 10 employers in a major city in the Midwest, a worker spends an…

A: From the given information, μ=413 and σ=26.8 The variable time spent is approximately normally…

Q: A set of final examination grades in an introductory statistics course is normally​ distributed,…

A:

Q: In​ 2008, the per capita consumption of soft drinks in Country A was reported to be 19.28 gallons.…

A:

Q: A set of scores in Statistics examination is approximately normally distributed with a mean of 74…

A: Given: The value of mean is, μ=74. The value of standard deviation is, σ=7.9. The objective is to…

Q: According to a survey of the top 10 employers in a major city in the Midwest, a worker spends an…

A:

Q: If a distribution of data follows a normal distribution, we would expect that the __________, and…

A: If a distribution of data follows a normal distribution, we would expect that the Mean median and…

Q: The average amount of Vitamin C in a capsule of a multivitamin is 500 mg and the standard deviation…

A:

Q: Answer and Graph the following: The length of time needed to servce a motorcycle at ETS Service…

A: Given : Let X be the length of time needed to service a motorcycle at ETS service stationMean ( μ) =…

Q: If n = 20 and p = 0.90, then the standard deviation of the binomial distribution is

A: Given: n= 20 p=0.90

Q: c. What is the probability that exactly ten of the 45 luxury cars sold are silver? d. What is the…

A: It is given that n=45 and p=0.191.

Q: The weights of adult male rhesus monkeys are normally distributed with a mean of 15 pounds and a…

A: Note :-As per our policy, we can answer only three sub-parts, make a new request for other sub-parts…

Q: According to AAA, the price of a gallon of regular, unleaded gas across gas stations in Ohio is…

A: According to AAA, the price of a gallon of regular, unleaded gas across gas stations in Ohio is…

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.