Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is 144000 dollars. Assume the standard deviation is 45000 dollars. Suppose you take a simple random sample of 70 graduates. Find the probability that a single randomly selected policy has a mean value between 122485.9 and 130015.8 dollars. P(122485.9 < X < 130015.8) =  (Enter your answers as numbers accurate to 4 decimal places.) Find the probability that a random sample of size n=70n=70 has a mean value between 122485.9 and 130015.8 dollars. P(122485.9 < M < 130015.8) =  (Enter your answers as numbers accurate to 4 decimal places.)

Q: Assume that adults have IQ scores that are normally distributed with a mean of 96.8 and a standard…

A: Let "X" be the IQ score of the adults.

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: An economics professor decides to curve the grades of his class. In doing so, he decides to make it…

A: Given data: An economics professor decides to curve the grades of his class. In doing so, he decides…

Q: A confidence interval for the true proportional difference between the amount of seniors that have…

A: Ha: P1- P2= 0 H0:P1-P2 not equal to zero

Q: UPPOSE THE LIFETIMES OF TV TUBES ARE NORMALLY DISTRIBUTED WITH A STANDARD DEVIATION OF 1.1 YEARS.…

A: GIVEN DATA : lifetimes of TV tubes are normally distributed with a standard deviation of 1.1 years…

Q: Let μ be the mean annual salary of Major League Baseball players in 2002. Assume that the standard…

A: From the provided information, Standard deviation (σ) = 99000 Sample size (n) = 50

Q: The life of an animal is normally distributed with a mean of 9 years and a standard deviation of1.5…

A: HERE FROM GIVEN INFORMATION , mean =  9 standard deviation  = 1.5 here use excel command for…

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

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

A: X follows a Normal distribution with mean = 172000 and S.D = 41000 Then z=(x-mean)/SD =…

Q: he number of bank robberies that occur in a large North American city is Poisson distributed with a…

A: Given : Let X : No. of bank robberies that occur in a large North American city is Poisson…

Q: Expected value  b Variance c Standard Deviation

A: Here prepare probability table with required column

Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the…

A:

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: Assume that adults have IQ scores that are normally distributed with a mean of 95.9 and a standard…

A: Given: Mean μ = 95.9 Standard deviation σ = 15.6 Formula Used: Z-score: Z = X-μσ

Q: A library checks out an average of 332 books per day with a standard deviation of 58 books. The…

A: Given that a library checks out an average of 332 books per day with standard deviation of 58 books.…

Q: fertility rate is the number of births per 1000 women aged 15-44. The mean fertility rate of the 50…

A: According to the given information in this question We need to find the following probability

Q: Seventy million pounds of trout are grown in the U.S. every year. Farm-raised trout contain an…

A: Given Mean =32 Standard deviation=7.5

Q: he number of customers at a coffee shop per day follows a normal distribution with a mean of 3,500…

A: given data, normal distributionμ=3500σ=250probability that the coffee shop will serve more than…

Q: study indicates that​ 18- to​ 24- year olds spend a mean of 115 minutes watching video on their…

A:

Q: Assume the credit card balances of younger college educated employed persons are normally…

A:

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

A:

Q: Assume the average number of fatal crashes caused by sleep-deprived drivers each year is 2,000.…

A: The mean is 2,000 and the standard deviation is 275.

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

A: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

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

A: given data μ=183000σ=34000n=65here sample size n≥30as per CLT we can say that distribution is…

Q: The grades of a statistics midterm are normally distributed with a mean of 79 and a standard…

A: Normal distributionμ=79σ=3.5pgrade between74 and 80=?

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

A:

Q: Find the probability that a single randomly selected salary that doesn't exceed 181000 dollars.…

A: The random variable X is defined as the salary for graduates which follows normal distribution with…

Q: construct the normal model for data with a mean of 57 and a standard deviation of 6. Show the…

A: It is called empirical rule.  Given, Mu= 57 Sigma = 6

Q: Find the probability that a randomly selected adult has an IQ greater than 136.4

A: Let X denote the IQ scores of adults. Given that X follows N(mean = 101.3, SD = 20.2), then  Z = (X…

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.