Suppose we are told the sampling distribution developed from a sample of size 900 has a mean of 46.78 and a standard error of 9.6. If the population is known to be normally distributed, what are the population mean and population standard deviation? Answers: Population Mean : Population Standard Deviation :

Q: Find the sample variance and sample standard deviation of a population. Given that population…

A: We have given that,  Population standard deviation (σ) = 15 and sample size (n) = 25

Q: Given a sample data set with a Standard Deviation of 1.4, what is the Variance of the data set.?…

A: The given value of sample standard deviation is, s = 1.4 Using the standard deviation, the formula…

Q: Which of the following would be expected to result in a larger standard error of the mean? a larger…

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Q: Need the answer to question 6.

A: (6)The provided information are:

Q: If a population has a standard deviation of 16, what is the minimum number of samples that need to…

A: Given,standard deviation (σ)=16margin of error (E)=2α=1-0.88=0.12α2=0.06Z0.06 =1.5548

Q: for a population with a mean of u=72 and a standard deviation of σ=10, what is the standard error of…

A: Given,mean(μ)=72standard deviation(σ)=10

Q: For a population with the mean of u = 45 and a standard deviation of 10, what's the standard error…

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

Q: A random sample of 40 students has a mean annual earnings of $3120 and assume that the population…

A: The margin of Error (MoR): It is the Range of values that has the sample statistics in the…

Q: A National Center for Health Statistics survey suggested that, in the late 1970s, the mean serum…

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Q: Suppose the data have a bell-shaped distribution with a mean of 40 and a standard deviation of 7.…

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Q: Which of the following is the correct formula for the margin of error of a population mean where the…

A: Margin of error: A margin of error is a statistical measurement for the diff. between actual and…

Q: Suppose a population of individuals has a mean weight of 160 pounds, with a population standard…

A: Solution: Let X be the weight of individuals. From the given information, X follows normal…

Q: In a large population of college-educated adults, the mean IQ is 112 with standard deviation 50.62.…

A: We have given that Mean(µ) = 112Standard deviations (σ) = 50.62n = 30

Q: A distribution with a mean of μ = 87 and a standard deviation of σ = 12 is transformed into a…

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Q: If the standard deviation of a population is 20 and we take a sample of size 16 from which to…

A: Given information Standard deviation σ = 20 Sample size n = 16

Q: In a two - tailed test, given that the population mean is 40 with a standard deviation of 2.5. A…

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Q: 5. If a population has a standard deviation of 16, what is the minimum number of samples that need…

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Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 268 days…

A:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 263 days…

A:

Q: If you want to be 95% confident of estimating the population mean to within a sampling error of ±5…

A: formula for the sample size :

Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5 find P(X…

A: Given dataMean = 35Standard deviation = 7.5

Q: A normally distributed population has a mean of 88 and a standard deviation of 10. When a sample of…

A: Here the given population mean is 88 and population standard deviation is 10.

Q: If X is normally distributed around a mean of 24 with a standard deviation of 20, find P(X > 35) P(…

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Q: If 10 were added to each of the values in a data set that originally had a standard deviation of 6,…

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Q: In a chemistry general exam, the grades are approximately Normally distributed with mean 77 and…

A: We have to find out given probabiity.

Q: A population is normally distributed with a mean of 50 and a standard deviation of 10. Find the…

A: Given data,Mean μ=50sd    σ=10P(X<44)=?

Q: Given that the variance for a data set 1.20, what is the standard deviation?

A: The standard deviation is calculated by taking the square root of variance. Variance is given as…

Q: A set of data is found to have a sample standard deviation of 25. Suppose 9 were added to each of…

A: Given: s=25 9 is added to each of the values.

Q: If an entire population with μ = 60 and s = 8 is transformed into z-scores, then the distribution of…

A: Given X~N(μ,σ) population mean μ=60 population standard deviation σ=8 The formula for a…

Q: Given a sample data set with a Standard Deviation of 1.34, what is the Variance of the data set.?…

A: We have to find variance.

Q: Which of the following would be expected to result in a larger standard error of the mean? A. a…

A: standard error is calculated as, standard error SE=standard deviation σnn =sample size Explanation:…

Q: The distribution of room and board expenses per year at a four-year college is normally distributed…

A: Given : Mean = μ = 5850 Standard deviation = σ = 1125 Sample size = n = 20

Q: Find the sample variance and sample standard deviation of a population. Given that population…

A: Here Given  σ=6 Sample size=n=21

Q: What is the value of k?   What is the standard deviation?

A: Here use basic of discrete probability distribution

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 260 days…

A: Given Information Mean µ = 260 Standard deviation(σ) = 14

Q: Suppose that a population that consists of the prices of selling all computer chips is normally…

A: The standard normal random variable is crucial to inferential statistics.

Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5 find P(X <…

A:

Q: A population is normally distributed with a mean of 51 and a standard deviation of 12. (a) What is…

A: (a) Obtain the mean of the sampling distribution for the given population. The mean of the sampling…

Q: Suppose the people living in a city have a mean score of 35 and a standard deviation of 9 on a…

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Q: If X is a normally distributed random variable with a mean of 235 Find the standard deviation given…

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Q: Some studies show that the mean normal body temperature is actually somewhat lower than the commonly…

A:

Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5 find P(X >…

A: GivenMean(μ)=35standard deviation(σ)=7.5

Q: which of the following would be expected to result in a larger standard error of the mean? (a) a…

A:

Q: Suppose the people living in a city have a mean score of 35 and a standard deviation of 10 on a…

A: Note: Hey, since there are multiple subparts posted, we will answer first three subparts. If you…

Q: The population has a mean of 120 and a standard deviation of 12. The sample size of your sampling…

A: The provided information are: Population mean (µ) = 120 Population standard deviation (σ) = 12…

Q: Suppose a population has a mean weight of 180 pounds and a standard deviation of 25 pounds. A sample…

A: Given,mean(μ)=180standard deviation(σ)=25sample size (n)=100

Q: It is reported that a survey had a standard error of the mean of 20, and it is assumed that the…

A: Given information- Population standard deviation (σ) = 500 Standard error of the mean (SE) = 20 We…

Q: The mean annual incomes of certified welders are normally distributed with the mean of $50,000 and a…

A: Given;  x be the annual income of certified welders are normally distributed with mean =$50000and…

Q: A nurse at a local hospital is interested in estimating the birth weight of infants. How large a…

A: The following information has been provided: α=0.02,E=4,σ=5\alpha = 0.02, E = 4, \sigma = 5…