2. Suppose that a random variable X follow known standard deviation of 30. We're Using a = 0.01, find the sample size n when th Jus fth

Q: what is the sample standard deviation?

A:

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A: Given Information: Sample size (n) = 20 Sample mean (x¯) = 20 Sample standard deviation (s) = 5 To…

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A: Given that ,                    sample size n=100                    Mean u=80…

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A: Given Population mean μ1=5000, population mean μ2=5030 Population standard deviations σ1=40,…

Q: Find the standard error of the sample mean such that we have 50 random samples with mean 30 and…

A: Number of random samples,  Mean=30 Standard deviation,

Q: A simple random sample of 64 observations was taken from a large population. The sample mean and the…

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Q: Find the raw score of a standard score of z= -1.25 in a normally distributed population with mean 25…

A: given data Z score =-1.25 Mean = 25 standard deviation = 5

Q: A population has a mean μ = 137 and a standard deviation o=20. Find the mean and standard deviation…

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Q: If the standard error of the mean is σx̅ = 3 and the sample size is n = 64, then the population…

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Q: A simple random sample of 64 observations was taken from a large population.  The sample mean and…

A: Solution-: Given: n=64,x¯=320,s=120 We want to find the standard error of the sample mean=?

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Q: Find the standard error of the sample mean such that we have 60 random samples with mean 25 and…

A: Sample size(n)=60mean=25standard deviation(s)=13

Q: Find the standard error of the sample mean such that we have 70 random samples with mean 40 and…

A: Sample size (n) = 70mean = 25standard deviation (s)

Q: A sample is selected from a population with u = 50. After a treatment is administered to the 16…

A: It is given that Sample size n = 16 Sample mean M = 55 Sample Sd s = 8 Population mean = 50

Q: A random variable is normally distributed with mean 84.2 and standard deviation 17.5. What value is…

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Q: A population of normal distribution is having mean 64 and standard deviation 13. A random sample…

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Q: S = 2722 - 16,900/7 7-1

A: The given equation is:

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Q: A random variable that is normally distributed where mean = 60, standard deviation = 2 and x=55.…

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Q: A random sample of sizen=20 has the mean 20 and standard deviation 5. What is the standard error of…

A: It is given that, Standard deviation,σ=5 Sample size, n=20