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 $155,000. Assume the standard deviation is $32,000. Suppose you take a simple random sample of 16 graduates. Round all answers to four decimal places if necessary. What is the distribution of XX? XX ~ N(,) What is the distribution of ¯xx¯? ¯xx¯ ~ N(,) For a single randomly selected graduate, find the probability that her salary is between $150,700 and $160,600.  For a simple random sample of 16 graduates, find the probability that the average salary is between $150,700 and $160,600.  For part d), is the assumption of normal necessary? YesNo

Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…

A: (a)   Obtain the probability that X is more than 60. The probability that is more than 60 is…

Q: %. The percentage of individual adult females with weights less than 83 kg is (Round to one decimal…

A: Assume that weights of adult females are normally distributed with a mean of 77 kg and a standard…

Q: Suppose that,to test the profitability of name changes in the more recent market (the past 5 years),…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: BIG Corporation produces just about everything but is currently interested in the lifetimes of its…

A:

Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…

A: NORMAL DISTRIBUTION:- Normal distribution is a continues distribution of data that has the…

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

A: Given data,μ=180000σ=39000

Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…

A: Since you have posted multiple sub part ,we are only provide the answer of forst three subpart…

Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…

A: Given information: mean, μ=86 Standard deviation, σ=29. a) The probability that x is more than 60…

Q: he IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one…

A: Given that  Mean=100 SD=15 X = IQ of an individual. The probability that a randomly selected person…

Q: The length of human pregnancies from conception to birth follows a normal distribution with a mean…

A:

Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…

A: Normal distribution is a continuous distribution that has many real-life applications. A normal…

Q: The time it takes a runner of a marathon in a certain city to fifinish the race (fifinish time) has…

A: Given Data Population Mean,μ = 195.0 Population Standard Deviation,σ = 25.0

Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…

A: GivenMean(μ)=84standard deviation(σ)=21

Q: The distribution of annual returns on common stocks has a mean of 9 percent and a standard deviation…

A:

Q: he time it takes for a statistics professor to mark a single midterm test is normally distributed…

A: Given Data: μ=4.9σ=1.9   Using central limit theorem ∑X ~ Normal (n×μ, n×σ2)∑X ~ Normal (269.5,…

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

A: GIVEN DATA, IQ scores are normally distributed μ =100σ=15 n=150probability a random sample of 150…

Q: Suppose a random sample of exponential random variables X1, ..., Xn is taken. Find the meanand…

A: Step 1:The sample mean, denoted by ˉXˉ, of a random sample of exponential random variables…

Q: Suppose samples of size 100 are drawn randomly from a normal population that has a mean of 20 and a…

A: It  is given that, a normal population that has a mean of 20 and a standard deviation of 5  i.e.…

Q: The t-value of t = fall between -to.95 and to.95 because to.95

A: given that n = 13  sample mean =  1195 sample standard deviation = 169.3  population mean = 1016

Q: Suppose you know that the distribution of sample proportions of nonresidents in samples of 200…

A: Let p^ denotes the sample proportion which follows normal distribution with mean 0.46 and standard…

Q: A population of scores forms a normal distribution with a mean of 180 and a standard deviation of…

A:

Q: An original population of scores with a mean = 50 and SD = 6 is standardized to create a new…

A: given data  1 represents original population 2 reperesents new distributionμ1 = 50μ2 = 80σ1 = 6σ2 =…

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

A:

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

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

Q: A population has a mean of 75 and a standard deviation of 15 you randomly sample nine people from…

A: Given population have mean 75 and standard deviation 15. A sample of 9 people from the population is…

Q: person's blood glucose level and diabetes are closely related. Let x be a random variable measured…

A: Given that.   X~N( μ , ?^2 )   μ=84     , ?=25   Z-score =( x - μ )/?   NOTE:- According to bartleby…

Q: The time it takes for a statistics professor to mark a single exam is normally distributed with a…

A:

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

A: First we will have to calculate the value of Z for both the students, larger the value of z , better…

Q: The distribution will be approximately a normal curve with mean_____and standard deviation_____ .

A: It is given that Mean = 104 And SD = 18 Sample size n = 100

Q: (a) between 56 and 74. % (b) above 68. % (c) below 56. %

A: here as per guideline i have calculated 3 subparts , plz repost for remainning. Suppose that the…

Q: Assume that an intelligence test scores are distributed normallt with a mean of 100 and a standard…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…

A: It is given that the mean is 88 and the standard deviation is 21.

Q: For a population with  = 15, a raw score of X = 82 corresponds to z = -0.60.  What is the mean for…

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

Q: The mean time for a group of adults to complete a certain achievement test is 38.8 minutes and the…

A:

Q: 9. What is the probability of selecting someone from the general population at random who would…

A: Answer:- Given , A standardized IQ test exists that possesses a normal distribution and has a mean…

Q: Although the samples are actually related, an investigator ignores this fact in the statistical…

A: Introduction: It is required to identify how the probability of a Type II error is affected in the…

Q: 32 individuals from a population and the mean of the population is 120 and the standard deviation of…

A: From the central limit theorem the sample mean blood glucose level will follow normal distribution…

Q: An SRS of 25 recent birth records at the local hospital was selected. In the sample, the average…

A:

Q: distribution that is approximately normal with mean ? = 82 and standard deviation ? = 22. Note:…

A: Let X be the random variable from normal distribution with mean (μ) = 82 and standard deviation (σ)…

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.