If a random sample of size 36 is obtained from a population with mean u=50 , and standard deviation σ = 24, what is the mean and standard deviation of the sampling distribution of the sample mean?

Q: A simple random sample of size n = 120 is obtained from a population with mean 240 and standard…

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Q: Assuming that IQ is normally distributed with a mean of 100 and a standard deviation of 15, describe…

A: According to central limit theorem, for large sample (>30) or if the population follows normal…

Q: 1. In a study of annual salaries of employees, random samples were selected from two companies to…

A: Note: Hey, since there are multiple questions posted, we will answer first question for you. If you…

Q: 1. Assume that the heights of 2,000 male students of JRU are normally distributed with a mean 65.0…

A: Given Information: Assume that the heights of a 2000 male students of JRU are normally distributed…

Q: Suppose heights, in inches, of male orangutans have an unknown distribution with mean 56 and…

A: According to the central limit theorem,

Q: Assume the random variable X is normally​ distributed, with mean μ=45 and standard deviation σ=8.…

A: Given,μ=45σ=8P(X<x)=13%=0.13x=?

Q: The annual salary for one particular occupation is normally​ distributed, with a mean of about…

A: Given information- Population mean, µ = 120,000 Population standard deviation, σ = 20,000 Sample…

Q: Consider a sample with data values of 8, 11, 4, 10, and 12. Compute the variance. (to 1 decimal)…

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Q: What sample size should be used in a study conducted to estimate the average monthly absences of…

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Q: Suppose that the incomes of all people in the United States who own hybrid (gas and electric)…

A: According to the central limit theorem, when a sample of size n is drawn from any population with…

Q: An independent-measures study with n = 5 in each sample produces a sample mean difference of 4…

A: We have to find test statistics.

Q: You have a sample size n=25 with observations that are independent and identically distributed, the…

A: Given that  Sample size is 25 and the observations are identically independently distributed. The…

Q: 3. When 25 samples are drawn with replacement Y 1 2 Ply) 1/2 1/6 3 1/3

A: 3)Given data is  y 1 2 3 P(y) 1/2 1/6 1/3

Q: Find the sample size for the given standard deviation 10 and the standard Error with respect of…

A: Given: standard deviation, s=10standard error =3

Q: The mean tar content of a simple random sample of 25 unfiltered​ king-size cigarettes is 20.8 ​mg,…

A: Given: n1=25x¯1=20.8s1=3n2=25x¯2=13.0s2=3.9

Q: If one has a Gaussian distribution of data points, approximately 2/3 of the data points lie within…

A: We know that- Gaussian distribution has symmetrical bell-shaped. It is also called a normal…

Q: 36% of a population has a particular characteristic. If samples of size n=400 are taken, calculate…

A: Solution: From the given information, the probability of a particular characteristic is 0.36 and the…

Q: When a population mean is compared to the mean of all possible sample means of size 25, the two…

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Q: A random sample of size 25 with mean 30 and variance 49 is selected from a normal distribution. A…

A: Given that, Sample size (n) = 25 Sample mean = 30 Sample variance = 49

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

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Q: Workers employed in a large service industry have an average wage of $15.00 per hour with astandard…

A: Solution: Given information: n= 64 Sample size of workers x=12.50 Sample meanμ=$15.00 Population…

Q: A random sample of size n= 16 was drawn from a population. If it is known that the population has…

A: Given : Mean = 32 Sample size =n = 16 Standard deviation = 5

Q: The annual salary for one particular occupation is normally​ distributed, with a mean of about…

A: Sampling Distribution of a Normal Variable :  Given a random variable X. Suppose that the population…

Q: What sample size should be used in a study conducted to estimate the average monthly absences of…

A:

Q: The annual salary for one particular occupation is normally​ distributed, with a mean of about…

A: The mean and standard deviation of the population is given as μ=120,000σ=23,000 The sample of n=30…

Q: The mean tar content of a simple random sample of 25 unfiltered king-size cigarettes is 21.3 mg,…

A: Given Information : The mean tar content of a simple random sample of 25 unfiltered king size…

Q: The annual salary for one particular occupation is normally distributed, with a mean of about…

A:

Q: A researcher prepared a figure showing sample quantiles as a function of the quantiles of a standard…

A: Introduction: For a normally distributed random variable, X with mean μ, and standard deviation σ,…

Q: if a population has a mean  of 75 and a standard deviation of 15    (a) what is the mean of the…

A: Given,sample size(n)=25mean(μ)=75standard deviation(σ)=15

Q: Assume the random variable X is normally​ distributed, with mean μ=50 and standard deviation σ=7…

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

Q: Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Find…

A: Solution:From the given information, mean value is 50, standard deviation value is 7. Let the random…

Q: In a random sample of size 11 from normally distributed population, obtain 99% confidence limits for…

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Q: 10. If the kurtosis coefficient is 4, this indicates that the kurtosis is positive and that the…

A: Given : Statement : If the kurtosis coefficient is 4 , this indicates that the sample data do not…

Q: Suppose a random sample of size 1000 is selected from a large population where the population mean…

A: Obtain the standard error of the mean of the sampling distribution. The standard error of the mean…

Q: Suppose the body mass index (BMI) of a group of athletes has a population mean of 24.98 and a…

A: # Given random sample of size n=150 and population mean mu=24.98  and standard deviations=4.18  To…

Q: 8. A random sample of size 16 is to be taken from a normal population having mean 100 and variance…

A: Obtain 90th percentile of the distribution of the sample mean. The 90th percentile of the…

Q: Assume the random variable X is normally​ distributed, with mean μ=47 and standard deviation σ=8.…

A:

Q: The annual salary for one particular occupation is normally​ distributed, with a mean of about…

A: Given : μ = 132000 , σ= 16000 and n= 26

Q: Suppose that a random sample of size 64 is to be selected from a population with mean 40 and…

A: Given,      Mean μ=40      Standard deviationσ=5      Sample sizen=64  a)   Mean of the X…

Q: A sample of 37 observations is selected from a normal population. The sample mean is 60, and the…

A: From the given information, Sample size (n) = 37 Sample mean (M) = 60 Population standard deviation…

Q: population has a mean of 75 and a standard deviation of 15 (a) what is the mean of the sampling…

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Q: A math teacher claims that the mean scores on a math assessment test for fourth grade boys and girls…

A: The provided information is  x¯2=151x¯2=149s1=36s2=34n1=13n2=15α=0.01 a.The null and alternative…

Q: A random sample of size 40 is taken from a large population with mean 100 and standard deviation 16.…

A: Given, μ=100σ=16

Q: What sample size should be used in a study conducted to estimate the average monthly absences of…

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Q: From a population of 500 elements, a sample of 225 elements is selected. it is known that the…

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Q: If a sample size is 100 and the population standard deviation is 30 then the standard deviation of…

A: Given: Sample size (n) = 100 population standard deviation =30

Q: Suppose that a simple random sample is taken from a normal population having a standard deviation of…

A: Given, n=64 σ=5.5α=0.05MOE=Zα/2*σn

Q: The weights of people in a certain population are normally distributed with a mean of 159 lb and a…

A:

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.