leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 29 weeks. Assume that the length of unemployment is normally distributed with population mean of 29 weeks and the

Q: The average age of accountants is 53 years, with a standard deviation of 5 years. If an accounting…

A: We have to find probability..

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: From the provided information,Mean (µ) = 162000Standard deviation (σ) = 36000Sample size (n) = 58

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 100 and standard…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 771 grams and a standard…

A: Solution: Let X be the weight of a particular fruit. From the given information, X follows normal…

Q: CNNBC recently reported that the mean annual cost of auto insurance is $962. Assume the standard…

A: Given information: The mean annual cost of auto insurance is $962. The standard deviation is $190.…

Q: he distribution of heights of adult males has a mean of 69 inches and a standard deviation of 4…

A: Solution-: Let, X= The distribution of heights of adult males Given: (inches) We find, P[ he…

Q: The mean life of pairs of shoes is 40 months with a standard deviation of 8 months If the life of…

A: The random variable X is the life of shoes It is normally distributed. The mean life of the pair of…

Q: how much will the probability that the students are aged above 15 years old change?

A:

Q: A population has a mean of 200 and a standard deviation of 25. A sample of 64 observations will be…

A: We have to find out given probabiity..

Q: population has a mean of 350 and a standard deviation of 25, determine the probability that a random…

A: GIVEN DATA, μ=350σ=25n=40p(335<x¯<375)=?

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a…

A: Obtain the Z-score for the random variable X equals 129. The Z-score for the random variable X…

Q: The average height of a certain age group of people is 53 inches. The standard deviation is 4…

A: Let X be the random variable from normal distribution with mean or average (μ) = 53 and standard…

Q: A particular fruit's weights are normally distributed, with a mean of 702 grams and a standard…

A: Introduction: Define X as the random variable of interest here, denoting the weight of a randomly…

Q: The net weight of a can of salmon is a random variable with a mean of 6.07 ounces and a standard…

A:

Q: About 2% of the population has a particular genetic mutation. Suppose 100 people are randomly…

A: Givenp=2%=0.02n=100x~Binomial(n=100,p=0.02)P(X=x)=(nx)(p)x(1-P)n-x  ; x=0,1,2...,n

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: Terri Vogel, an amateur motorcycle racer, averages 129.71 seconds per 2.5 mile lap (in a 7 lap race)…

A: Determine the distribution of X. The distribution of X is determined below as follows:   Obtain the…

Q: A baseball team has 31 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

A: A baseball team has 31 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

Q: Exhibit 6-5 The weight of items produced by a machine is normally distributed with a mean of 8…

A: Given that  Mean = 8 Standard deviation = 2 Find P(X = 8 )

Q: You want to determine the probability that when seven consumers are randomly selected, exactly two…

A: 1. n = 7, x = 2, p = 0.45, q = 0.552. Mean, μ = 3.15    Standard Deviation, σ = 1.31623. P(X = 2) =…

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: A particular fruit's weights are normally distributed, with a mean of 727 grams and a standard…

A: The mean is 727 and the standard deviation is 34 grams.

Q: The weights of college football players are normally distributed with a mean of 193 pounds and a…

A: Mean = 193 Standard deviation = 53

Q: The average score of all golfers for a particular course has a mean of 64 and a standard deviation…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard…

A: The standard normal variable Z is defined as, Z = (X – µ)/σ, where µ is the mean of the random…

Q: The life of light bulbs is distributed normally. The standard deviation of the lifetime is 20 hours…

A: Denote X as the life of a randomly selected light bulb.

Q: Americans (on average) individually eat 16 pounds of seafood each year with a standard deviation of…

A: Given that   x̄ = 14 , μ = 16 , ? = 7 , n = 4

Q: For a certain group of individuals, the average heart rate is 74 beats per minute. Assume the…

A:

Q: s 6 hours a day. If college students were randomly selected, find the probability that the mean…

A: Let X be the random variable from normal distribution with mean (μ) = 6 hours and standard deviation…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 100 and a…

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15

Q: The life of lightbulbs is distributed normally. The standard deviation of the lifetime is 20 hours…

A: The following information has been provided: The population mean is μ=600. The population standard…

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A:

Q: The average production cost for major movies is 57 million dollars and the standard deviation is 23…

A: The average production cost for major movies is 57 million dollars and the standard deviation is 23…

Q: The IQ of highschool seniors is normally distributed with a mean of 100 and a standard deviation of…

A: The sample size is n=15. The population mean is μ=100. The population standard deviation is σ=15. We…

Q: The probability that a patient recovers from a delicate heart operation is 60%. There are 20…

A: Given data: Probability  = p = 0.60 Sample size (n) = 20 To find: What is the mean and standard…

Q: The weights of steers in a herd are distributed normally. The standard deviation is 200lbs and the…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a…

A: Let X be the random variable from normal distribution with mean (μ) = 100 and standard deviation (σ)…

Q: The golf scores for a school team were normally distributed with a mean of 68 and a standard…

A: Normal distributionPopulation mean : Population standard deviation : The probability that a golfer…

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.