Find the z-scores for each value below, which come from
a distribution with mean 18.7 and standard deviation 1.3.
a) x = 21.3; z = ____________
b) x = 17.4; z = ____________
c) x = 18.7; z = ____________
Find the z-scores for each value below, which come from a distribution with mean 18.7 and...
1. A normal distribution of scores has a standard deviation of 10. Find the z-scores corresponding to each of the following values: a. A score that is 20 points above the mean. b. A score that is 10 points below the mean. c. A score that is 15 points above the mean. d. A score that is 30 points below the mean.
A distribution has a standard deviation of o= 12. Find the Z-score for each of the following locations in the distribution. a. Above the mean by 3 points. b. Above the mean by 12 points. c. Below the mean by 24 points. d. Below the mean by 8 points. For a population with u = 50 and o= 8, find the z-score for each of the following X values. a. X= 54 b. X= 62 c. X= 52 d. X=...
What proportion of a normal distribution is located between each of the following Z-score boundaries? a. z= -0.50 and z= +0.50 b. z=-0.90 and z= +0.90 c. z=-1.50 and z= 1.50 For a normal distribution with a mean of μ = 80 and a standard deviation of σ= 20, find the proportion of the population corresponding to each of the following. a. Scores greater than 85. b. Scores less than 100. c. Scores between 70 and 90. IQ test scores are standardized to produce a normal distribution with...
If in a normal distribution, then using z-scores and drawing a labeled normal curve, find a) p(x>710) b) p(450 c) p(x<640) mean: 500 standard deviation: 100
In a distribution of scores, a score value (X) has a z-score of 2. How would interpret z-score of 2. Select one: O a. The particular score (X) is two standard deviations above the mean. b. The particular score (X) is two points above the mean. c. The particular score (X) is two points below the mean. d. The particular score (X) is two standard deviations below the mean.
Identify the Z-Score value corresponding to each of the following locations: Below the mean by a standard deviation of 1 Above the mean by a standard deviation of 1 and 1/2 Below the mean by standard deviation of 3/4 Above the mean by a standard deviation of 2 and 7/8 a. Z = 1.00 Z = 1.50 Z = .75 Z = 2.875 b. Z = -1.00 Z = +1.50 Z = -.75 Z = +2.875 c. Z = +1.00...
question 4 1. A distribution has a standard deviation of a = 12 points. Find the 2-score for each of the following locations in a distribution by sketching a distribution (do not use an equation). (4 points) a. Above the mean by 4 points b. Below the mean by 6 points c. Below the mean by 18 points 2. A distribution has a standard deviation of a = 5 and u = 30. Find the score for each of the...
Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. 13) Shaded area is 0.9599. A) - 1.38 B) 1.03 1.82 D) 1.75 14) Shaded area is 0.0694. A) 1.45 B) 1.26 1.48 D) 1.39Find the indicated value. 15) z0.005 A) 2.535 D) 2.015 92.835 B) 2.575 16) z0.36 A) 1.76 B) 0.45 1.60 D) 0.36 Provide an appropriate response. 17) Find the area of the shaded region. The graph depicts IQ scores of adults, and those scores are normally distributed...
3. A normal distribution of BMCC MATSI scores has a standard deviation of 1.5. Find the z-scores corresponding to each of the following values: a. A score that is 3 points above the mean. b. A score that is 1.5 points below the mean. c. A score that is 2.25 points above the mean 4. Scores on BMCC fall 2017 MATI50.5 department final exam form a normal distribution with a mean of 70 and a standard deviation of 8. What...
A distribution of scores has a mean of ?=100 and a standard deviation of ?=10. For an x value of 140, calculate the corresponding z-score.Can you also interpret what the z-score of x means (x=140)?