1. Draw a sketch of a population of scores that has a normal distribution. Indicate where...
1. Draw a sketch of a population of scores that has a normal distribution. Indicate where the mean is and label it. Also locate and label where a z-score of -0.2 and a z-score of 1.8 would be.
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1. Draw a sketch of a population of scores that has a normal
distribution. Indicate where...
1) The population of SAT scores is normal with μ = 500 and σ = 100....
1) The population of SAT scores is normal with μ = 500 and σ = 100. If you get a sample of n = 25 students, what is the probability that the sample mean will be greater than M=540? Be sure to draw out your distribution and clearly indicate where the score falls within the distribution. Also shade in the area in question. 2) For a given μ = 80 and σ = 25. If you get a sample of...
A population of values has a normal distribution with μ You intend to draw a random...
A population of values has a normal distribution with μ You intend to draw a random sample of size n 168 197.8 and σ 82.6. Find P39, which is the mean separating the bottom 39% means from the top 61% means. P39 (for sample means)-( 174.7 Enter your answers as numbers accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. License Points possible: 1 Unlimited attempts. Score on last attempt:...
A normal distribution of scores in population has a mean of µ = 100 with σ...
A normal distribution of scores in population has a mean of µ = 100 with σ = 20. A. What is the probability of randomly selecting a score greater than X = 110 from this population? B. If a sample of n = 25 scores is randomly selected from this population, what is the probability that the sample mean will be greater than M = 110?
1. A normal distribution of scores has a standard deviation of 10. Find the z-scores corresponding to...
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.
3. A normal distribution of BMCC MATSI scores has a standard deviation of 1.5. Find the...
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 population of values has a normal distribution with u = 44.6 and 0 = 51.1....
A population of values has a normal distribution with u = 44.6 and 0 = 51.1. You intend to draw a random sample of size n = 230. Find P93, which is the score separating the bottom 93% scores from the top 7% scores. P 93 (for single values) = Find P93, which is the mean separating the bottom 93% means from the top 7% means. P93 (for sample means) = Enter your answers as numbers accurate to 1 decimal...
A population of values has a normal distribution with ?=147.3 and ?=75.7. You intend to draw...
A population of values has a normal distribution with ?=147.3 and ?=75.7. You intend to draw a random sample of size n= 222. Find P38, which is the score separating the bottom 38% scores from the top 62% scores. P38 (for single values) = For the sample of 222, find P38, which is the mean separating the bottom 38% means from the top 62% means. P38 (for sample means) = Enter your answers as numbers to 1 decimal place.
Proportions (percentages) in a Z Distribution A large population of scores from a standardized test are...
Proportions (percentages) in a Z Distribution A large population of scores from a standardized test are normally distributed with a population mean (μ) of 50 and a standard deviation (σ) of 5. Because the scores are normally distributed, the whole population can be converted into a Z distribution. Because the Z distribution has symmetrical bell shape with known properties, it’s possible to mathematically figure out the percentage of scores within any specified area in the distribution. The Z table provides...
A population of values has a normal distribution with 11-83.4 and ơ-95.3. You intend to draw...
A population of values has a normal distribution with 11-83.4 and ơ-95.3. You intend to draw a random sample of size n 214. Find P91, which is the mean separating the bottom 91% means from the top 9% means. Po1 (for sample means)- Enter your answers as numbers accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted Points possible: 1 License Unlimited attempts
A population of values has a normal distribution with μ=87.4μ=87.4 and σ=41σ=41. You intend to draw...
A population of values has a normal distribution with
μ=87.4μ=87.4 and σ=41σ=41. You intend to draw a random sample of
size n=106n=106.
Find P6, which is the mean separating the
bottom 6% means from the top 94% means.
P6 (for sample means) =
Enter your answers as numbers accurate to 1 decimal place. Answers
obtained using exact z-scores or z-scores rounded
to 3 decimal places are accepted.
A population of values has a normal distribution with μ You intend to draw a random sample of size n 168 197.8 and σ 82.6. Find P39, which is the mean separating the bottom 39% means from the top 61% means. P39 (for sample means)-( 174.7 Enter your answers as numbers accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. License Points possible: 1 Unlimited attempts. Score on last attempt:...
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 population of values has a normal distribution with u = 44.6 and 0 = 51.1. You intend to draw a random sample of size n = 230. Find P93, which is the score separating the bottom 93% scores from the top 7% scores. P 93 (for single values) = Find P93, which is the mean separating the bottom 93% means from the top 7% means. P93 (for sample means) = Enter your answers as numbers accurate to 1 decimal...
A population of values has a normal distribution with 11-83.4 and ơ-95.3. You intend to draw a random sample of size n 214. Find P91, which is the mean separating the bottom 91% means from the top 9% means. Po1 (for sample means)- Enter your answers as numbers accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted Points possible: 1 License Unlimited attempts
A population of values has a normal distribution with
μ=87.4μ=87.4 and σ=41σ=41. You intend to draw a random sample of
size n=106n=106.
Find P6, which is the mean separating the
bottom 6% means from the top 94% means.
P6 (for sample means) =
Enter your answers as numbers accurate to 1 decimal place. Answers
obtained using exact z-scores or z-scores rounded
to 3 decimal places are accepted.
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