In a population with a mean of µ = 30 and a standard deviation of σ = 5, a score of X = 18 would be an extreme value, far out in the tail of the distribution. true or false?

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: Given information Mean = 116 Standard deviation = 14  between 102 and 130

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: In a population of scores, X = 83 corresponds to z = 0.50 and X = 93 corresponds to z = +2.00. What…

A: We have to find mean and sd.

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: From the provided information, Mean (µ) = 116 Standard deviation (σ) = 14 X ~N (116, 14)

Q: A z-score of −1 tells us that a score fell one standard deviation below the mean in a group of…

A: Empirical rule: For a normal distribution, the approximate values that fall in the specified…

Q: In a population of exam scores, a score of X = 48 corresponds to z = +1.00 and a score of X = 36…

A:

Q: In a population of exam scores, a score of X = 88 corresponds to z = 2 and a score of X = 79…

A: From the provided information, A score of X = 88 corresponds to z = 2 A score of X = 79 corresponds…

Q: The z-score of −2 tells us that x=14 is two standard deviations to the left of the mean. The…

A: Given that z score is -2. x=14 is two standard deviations to the left of the mean. That is, μ-2σ.…

Q: On an exam with a mean of M=39, you obtain a score of X=35. Would you prefer a standard deviation…

A: Given that, Mean M =39 X=35, prefer a standard deviation of s= 2 or s=8:

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: X has normally distribution. X~N(μ,σ) Mean(μ)=144   and  Standard deviation(σ)=27 Find…

Q: a population of scores has u=44. in this population a score of x=40 corresponds to z = -1.00. What…

A: We have given that, Population mean (u) = 44, raw score of population (X) = 40 and z- score = -1. 00…

Q: score of x=14, which value for the standard deviation would give this person the highest position in…

A: We have given that µ = 52 x = 14 z-score formula is given as  z =( x - μ )/σ

Q: On an exam with u=52 ,a person scores x=56.Which value for the standard deviation would give this…

A: We have given that,  Mean = 52 , X = 56 , We have to find z-score at  (1) sigma = 2  (2) sigma = 4…

Q: Suppose a population is known to be normally distributed with a mean, µ, equal to 116 and a standard…

A: Answer - A Normal distribution with a mean μ = 116  and a standard deviation σ = 14…

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

A:

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: From the provided information,

Q: For a population with a mean of ? = 80 and a standard deviation of ? = 12, a score of X = 77…

A: Given : population mean = 80 standard deviation = 12 score of X = 77

Q: A population has a mean of u=50 and a standard deviation of 0=10. If 3 points were added to every…

A: The properties of mean are:E(X + a) = E( X ) + a * E(X+a)=E(X)+aE(aX)=aE(X)The property of variance…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: Given data A population is normally distributed with mean equal to 144 and standard deviation equal…

Q: On an exam with u = 52, you have a score of X = 56. Which value for the standard deviation would…

A: We have given that µ = 52 x = 56 z-score formula is given as  z =( x - μ )/σ

Q: In a population distribution, a score of X = 28 cor- responds to z = −1.00 and a score of X = 34…

A: