If X is normally distributed with a population mean of 123 and a population standard deviation of 12, the sampling distribution of the sample mean can be assumed to be normal for which sample size? A. n= 23 B. n= 30 C. n= 50 D. All of the above

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Q: . A population forms a normal distribution with a mean of μ = 55 and a standard deviation of σ = 12.…

A: Given: Mean μ =55 S.D σ = 12 Sample mean is given by n for  each sample M For each sample computing…

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A: Given : n≥30 population standard deviation is not known.

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Q: SEM for a sample of size 100 and standard deviation of 5.6 is equal to? O-14/25 O 23/100 O 67/100…

A: Thank you for posting the question. As your question has more than two questions, as per the policy,…

Q: For a population with mean of 50 and standard deviation of 8, what is the Z-score that corresponds…

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Q: Suppose ? has a distribution with a mean of 20 and a standard deviation of 3. Random samples of size…

A: Mean = 20 standard deviation = 3 n = 49

Q: For a normal distribution with a mean of u = 60 and a standard deviation of o = 10, find the…

A: By using Normal distribution, we have Mean = 60 Standard deviation = 10

Q: Consider a sample with a mean of 30 and a standard deviation of 5. Use Chebyshev’stheorem to…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Consider a sample with a mean of 30 and a standard deviation of 5. Use Chebyshev's theorem to…

A:

Q: Given that for a particular variable that is known to have a normal distribution, the µ = 15 and σ =…

A: Given that for a particular variable that is known to have a normal distribution, the µ = 15 and σ =…

Q: Suppose an experiment is run with a sample of 64 items from a population with a mean of 10.2 and a…

A: Here, mean µ = 10.2, the standard deviation, σ = 0.12, and n = 64.

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

Q: At what sample size would the standard deviation of the distribution of all possible sample means be…

A: We have given that,  We have to choose sample size when population standard deviation and sample…

Q: Consider a sample with a mean of 30 and a standard deviation of 5. Use Chebyshev’stheorem to…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: For a normal distribution with a mean of μ = 10 and a standard deviation of σ = 2, what is p(5<X<15)

A: It is given that X follows N(mean = 10, SD = 2), then Z = (X - mean)/SD follows N(0,1)

Q: 6. For a population with a mean of u = 45 and a standard deviation of o = 10, what is the standard…

A: Given that, Mean = 45 Standard deviation = 10

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A: Since you have posted multiple questions, we have provided answer for only few questions as per our…

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Q: For a population with a mean of  μ = 50 and a standard  deviation of  σ = 10, compute the standard…

A: Mean = 50 Standard deviation = 10

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A: According to the given information, we have Mean = 5 P-value = 0.3015

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A: 4)Givenn&lt;30population standard deviation is not known

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Q: For a population with a mean of u = 45 and a stan- dard deviation of o = 10, what is the standard…

A: It is given that the mean is 45 and the standard deviation is 10.

Q: SEM for a sample of size 100 and standard deviation of 5.6 is equal to?   a - 14/25   b 23/100   c…

A: Given: Sample size (n) = 100 Standard deviation = 5.6

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A: Given data,Total no of students n=1200Who said yes is x=586Find a 95% Confidence interval?

Q: 1. Given a population with mean M= 60, which of the following values for the population standard…

A: Calculate the Z-score corresponding X = 68 using the formula.

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Q: Consider a sample with a mean of 60 and a standard deviation of 5. Use Chebyshev's theorem to…

A: According to our guidelines we can answer only three subparts and rest can be repost.

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Q: 10. For a population with a mean of µ = 40 and a stan- dard deviation of o = 8, find the z-score…

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Q: 5. In a population with m = 65 and s = 6, Fred is 1 ½ standard deviations above the mean, John's…

A: Hi there! Thanks for posting the question. Since there are multiple questions, we will solve one…

Q: Consider a sample with a mean of 30 and a standard deviation of 5. Use Chebyshev's theorem to…

A: As per our guidelines we can solve first three subpart and rest can be reposted. Solution-: Given:…