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[DOC File]Z-Score Practice Worksheet
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Oct 13, 2015 · Z-Score Practice Worksheet #2. 1. A normal distribution of scores has a standard deviation of 10. Find the z-scores corresponding to each of the following values: A score of 60, where the mean score of the sample data values is 40. A score that is 30 points below the mean. A score of 80, where the mean score of the sample data values is 30.
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[DOC File]www.megcherry.com
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The Z score table gives the area between a score and the mean. ... If the distribution is normal and your score was 70, what percentage of the scores was lower than yours? a. 15.87% b. 30.00% c. 34.13% d. 50.00% ... a. results based on large samples are not reliable b. both independent and dependent variables must be at least ordinal in level ...
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[DOC File]Exam 3 Practice Questions
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B Use the sampling distribution of the sample proportion that you used above and the z-score. Look up 1.00 in the table. 0.8413 is listed in the table. This is the proportion less than, we want the proportion greater than so we take 1-0.8413=0.1587.
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[DOC File]00 PSY221 title and cover page - Fayetteville State University
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2. What is the percentage area between a z-score of -1.25 and a z-score of .36? 3. In a normal distribution of test scores with a mean equal to 57 and a standard deviation equal to 6.5, what is the percentile rank is associated with a score of 65? 4. The scores on a personality test are normally distributed with μ = 250 and σ = 30. What ...
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[DOC File]This test is divided into sections based on topics covered ...
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23. The numerical difference between the raw score and the mean, when divided by the standard deviation, yields the: T-score. z-score. r. SD . 24 If a student achieved a score of 10 on a test with a mean of 15 and a standard deviation of 5, and a score of 50 on another test with a mean of 60 and a standard deviation of 10, we could say that: a.
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[DOCX File]statistics.byuimath.com
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Eleanor has the higher score based on the higher z-score which factors in the mean and standard deviation when computing the scores. Eleanor’s score has a higher percentile than Gerald’s score. The label on the ChocoLux candy bar states that it has a net weight of 87.75 grams.
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[DOC File]Sample Test Questions -- Test 1 - University of Florida
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13. One state wants to allow all students with scores in the top 3% into a special advanced program. What will be the minimum score required to be admitted into this program? a) 1.88. b) 31.2. c) -1.88. d) 68.8. 14. Suppose that after the first exam you compute the z-score that corresponds to your exam score on Exam 1. Your z-score was -1.34.
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[DOC File]AP Statistics
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Calculate and interpret the z-score for a player in this position who can lift a weight of 370 pounds. The z-score for a player who can lift a weight of 370 pounds is . The z-score indicates that the amount of weight the player can lift is 2.4 standard deviations above the mean for …
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[DOC File]Z-scores and Empirical Rule Notes
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Z-scores: Z-scores are used to normalize data, or to convert all data to a common unit. A z-score tells you how many standard deviations away your data is from the mean. Types of z-score questions: 1. Lewis earned 80 on his biology midterm and a 71 on his history midterm. In the biology class the mean score was 75 with a standard deviation of 4.
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Z score based on percentage