What position [how many standard deviations] in the distribution corresponds to z-score of z= -1.00?
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 sample with M= 80, a score of X= 88 corresponds to z =2. what is the sample standard deviation…
A:
Q: What is the z-score of a value of 28 of set A, given that the set has a mean of 27 and a standard…
A: From the given information, Mean = 27 Standard deviation = 3.2 The objective is to find the z-score…
Q: Express the k th percentile, Pk , of a normally distributed variable in terms of its mean, μ, and…
A: The kth percentile represents the area of k to the left of z. Here, the kth percentile is calculated…
Q: For a population with mean 80 and standard deviation 6, what is the z-score corresponding to X = 68…
A: Given :Population mean u=80Standard deviation σ=6X=68
Q: Given a distribution with a mean of 60 and standard deviation of 21, find a value with a z-score of…
A: Introduction:Consider X as a normally distributed random variable, with mean μ and standard…
Q: What is the z score of x=30 if x is three deviations to the left of the mean?
A: From the provided information, x = 30 and it is three deviations to the left of the mean.
Q: A score that is 12 points below the mean corresponds to a z-score of z= -1.50. What is the standard…
A: Given that, A score that is 12 points below the mean corresponds to a z-score of z= -1.50.
Q: what will be the value of X at the z score =-2.5 given, mean=45 and standard deviation =5?
A: Mean = 45 Standard deviation = 5 Z score =-2.5 We have to find X score for given data...
Q: find the z-score for the value 69, when the mean is 96 and the standard deviation is 5.
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Q: Find the z-score for the value 55, when the mean is 79 and the standard deviation is 5.
A: The z score indicates how many standard deviations that a data points away from the mean. It can be…
Q: Show that the standard deviation of z-scores equals 1
A: z score is given by, z score = x-μσ Where, x: Raw score μ: Population mean. σ: Population standard…
Q: For a sample with mean M=80, a score of X=88 corresponds to z=2. What is the standard deviation?
A:
Q: For a population with a standard deviation of σ = 20, how large is a sample necessary to have a…
A: The standard deviation is 20.
Q: . Given a distribution with a mean of 60 and standard deviation of 21, find a value with a z-score…
A:
Q: A given distribution has a population mean, μ, of 114 and a population standard deviation, σ, of 12.…
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Q: A given distribution has a population mean, μ, of 106 and a population standard deviation, σ, of 8.…
A:
Q: what is the z-score of a value of 28 of set A, given that the set has a mean of 26 and a standard…
A: The mean is 26 and the standard deviation 3.0.
Q: z-score of
A: Given that Value (x) = 27 Mean (μ) = 24 Standard deviation (σ) = 2 We know that Z=(x-μ)σ
Q: For a random sample of 40 students, the average statistics midterm score is 73 points (out of a…
A: The sample size is 40, average statistics midterm score is 73 points, and standard deviation is 7.3.
Q: In a particular examination, the mean score is 82 and the standard deviation is 3.7. Wha is the Z-…
A: Given that the mean is 82 and standard deviation is 3.7. That is, μ=82σ=3.7
Q: For any distribution, what is the z-score corresponding to the mean?
A: The z-score of a random variable x is defined as follows: z = (x – µ)/σ. Here, µ and σ are the mean…
Q: A given distribution has a population mean, μ, of 147 and a population standard deviation, σ, of 8.…
A: Given information Mean (µ) = 147 Standard Deviation(σ) = 8 X = 130 z-score
Q: A sample of n = 5 scores has Σ X = 20 and Σ X2 = 180. For this sample, what is the value of the…
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Q: A score that is 9 points above the mean corresponds to a z-score of z = 1.50. What is the population…
A:
Q: A normal distribution has a mean of u standard deviation of o = 12. For each of the follow- ing…
A: Given info: Here, mean, µ = 30 and σ = 12
Q: Hello, how do you calculate this? Thank You!
A: Compute the 90% confidence interval for the population mean.Since the sample size is small and the…
Q: What is the z-score of x = 9, if it is 0.133 standard deviations to the left of the mean?
A: Given X=9,
Q: A score that is 20 points above the mean corresponds to a z-score of z – 1.25. What is the standard…
A: Given: z= 1.20 20 points above the mean. that is
Q: The SAT Math scores have a bell-shaped distribution with a Mean of 567 and a Standard Deviation of…
A: We have given that, Let the SAT scores are normally distributed with mean (mu) = 567 and standard…
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: Suppose x is a value in a normal distribution, with a mean of 12, and standard deviation of 4, What…
A: Given: x=4μ=12σ=4 The z score of x=4 is obtained as follows: Z=x-μσ=4-124=-84=-2 Thus, the z-score…
Q: For any distribution, what is the z-score corresponding to the mean?
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Q: The distribution of the annual incomes of a group of middle management employees approximated a…
A: In question, The distribution of annual income of middle management employees approximated normal…
Q: What is the z-score of a value of 27, given a set mean of 24, and a standard deviation of 2?
A:
Q: For a population with mean of 50 and a standard deviation of 8, what is the Z-score that corresponds…
A: Given: population mean of random variable x is =50 and standard deviations=8 then find z score…
Q: A given distribution has a population mean, μ, of 106 and a population standard deviation, σ, of 11.…
A: Mean = 106 Standard deviation = 11 Raw score = 104
Q: (O) What is the standard deviation of a distribution that has a mean of 46.2 if a PERFORMANCE value…
A: From the provided information, Mean (µ) = 46.2 Performance value (x) = 28 Z score = -1.24
Q: Find the z-score for the value 80, when the mean is 70 and the standard deviation is 2.
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Q: Find the z-score when x is 5, mean equals 7, and standard deviation 3.
A: Solution: Let X be the random variable. Then, the z-score is calculated by using the formula
Q: A given distribution has a population mean, μ, of 144 and a population standard deviation, σ, of 12.…
A: A given distribution has a population mean, μ, of 144 and a population standard deviation, σ, of 12.…
Q: A group of friends compares what they received while trick or treating. They find that the average…
A: Solution: Let X be the number of candies. From the given information, µ=43, σ= 2 and z-score is…
Q: What is the z-score of x=9, if it's 1.5 standard deviations to the left of the mean
A: We have to find z value from given data
Q: What is the z-score of x = 75, if it is 2.8 standard deviations to the left of the mean? Answer to…
A: If the x = 75 is 2.8 standard deviations to the left of mean. Z value tells the distance from the…
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: Q2) A certain machine makes electrical resistors having a mean resistance of 60 ohms and a standard…
A: Given information: μ=60, σ=2
Q: The IQ scores of a large group of students are approximately normally distributed with a mean of 100…
A:
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