From a normally distributed population, we took a simple random sample of 700 students with a mean score of 640 on the biology section of the test. Suppose the standard deviation of the population is 300. Estimate the population mean with: a. 90% confidence b. 95% confidence c. 99% confidence

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: For a sample of n = 30 scores, a score that is 6 points above the mean has a z-score of z = 1.50.…

A: For a sample of n = 30 scores, a score that is 6 points above the mean has a z-score of z = 1.50.

Q: For a population with a mean of u=40 and a standard deviation of σ=8, find the z-score corresponding…

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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 sample with M= 80, a score of X= 88 corresponds to z =2. what is the sample standard deviation…

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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: 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: From a normally distributed population, we took a simple random sample of 700 students with a mean…

A: Sample size n=700 Sample mean x¯=640 Population Standard deviation σ=300

Q: In a sample distribution, X=56 corresponds to z=1.00, and X=47 corresponds to z=-0.50. Find the mean…

A: Given,  X=56 corresponds to z=1.00 X=47 corresponds to z=-0.50 wktz=x-μσX=zσ +μ

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

A:

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

A:

Q: Given a population where p = 0.10, find the standard deviation of the samping distribution when n =…

A: It is given that p is 0.10 and n is 500.

Q: For a sample with mean M=80,  a score of X=88 corresponds to z=2. What is the standard deviation?

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

A:

Q: From a normally distributed population, we took a simple random sample of 700 students with a mean…

A:

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

A: For a population with mean µ  and standard deviation σ, the standard error is σM = σ/√n, where M is…

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

A: Given,mean(μ)=50standard deviation(σ)=8

Q: Given a population where p = 0.10, find the standard deviation of the samping distribution when n =…

A: It is given that p is 0.10 and n is 2,000.

Q: A sample has a mean M = 55. In the sample, a score of X = 48 corresponds to z = -1.50. What is the…

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Q: For a population with a mean of μ= 50 and a standard  deviation of σ= 10, M=55, compute the z-score…

A: It is given that the mean is 50 and the standard deviation is 10.

Q: For a population with a mean of μ = 24 and a standard deviation of σ = 14, find the z-score…

A: Given,mean(μ)=24standard deviation(σ)=14sample size(n)=4sample mean(M)=26

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

Q: For a sample of n=16 scores, what is the value of the population standard deviation necessary to…

A: Given data, n=16 what is the value of the population standard deviation necessary to produce each of…

Q: If W is a normally distributed with the mean of 225, find the standard deviation, given that P(X <…

A: Given data: Mean  = 225 find: Standard deviation

Q: For a sample of n = 16 scores, what is the value of the population standard deviation (σ) necessary…

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Q: In a random sample of 1000 students, 70% prefer to study at the school campus. The standard error…

A: Solution: Given:   n: size of random sample  = 1000 p: sample proportion          = 0.70…

Q: Given a population where p = 0.10, find the standard deviation of the samping distribution when n =…

A:

Q: Find the standard deviation, s, of sample data summarized in the frequency distribution table below…

A: Given: Interval Frequency 30-39 1 40-49 3 50-59 8 60-69 3 70-79 15 80-89 31 90-99…

Q: A given distribution has a population mean, μ, of 140 and a population standard deviation, σ, of 7.…

A: From the given information,   Mean = 140 Standard deviation = 7   The objective is to find the…

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

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Q: E (T; – T)² = 2535. in

A: Here's the explanation :- The standard deviation is a measure of the amount of variation or…

Q: The average test scores in a Science class is normally distributed with a standard deviation of 8.…

A: From the above information we have, n=200x=170σ=8 We can use the following formula for estimate the…

Q: For a population with  = 150, a raw score of X = 125 corresponds to z = -2.00.  What is the standard…

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

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

A:

Q: A given distribution has a population mean, µ, of 110 and a population standard deviation, o, of 15.…

A: The population mean is = 110 And the SD = 15 The value of X is 140

Q: Assuming you obtained a random sample of blood glucose levels from 32 individuals from a population…

A: It is given that the mean is 120 and the standard deviation is 15.

Q: Given the population of men has normally distributed weights with a mean of 172 lb and a standard…

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

Q: If a sample of size 16 is selected from a population that follows a normal distribution with a…

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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: For a population with a mean of μ= 40 and a standard deviation of σ= 6, find the z-score…

A: From the provided information, Population mean (µ) = 40 Standard deviation (σ) = 6 a) Sample size…

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

A: In question, Given that mu=50, Sigma= 8 and z score = -0.50 Then we'll find the value of raw score.…

Q: In a population with m=60, a score of X=58 corresponds to a z-score of z=-0.50. What is the…

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

A:

Q: For a population with a standard deviation of o = 5, find the z-scores for the locations of 20…

A: For a population with a standard deviation of σ = 5.

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

A:

Q: For a sample, a score that is 12 points above the mean has a z-score of z = 1.20. What is the sample…

A: We have to find sample standard deviation

Q: Given X is a normally distributed random variable with a mean of 155 and a standard deviation of…

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Q: Given a test that is normally distributed with a mean of 100 and a standard deviation of 12, find:…

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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…

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.