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[DOCX File]High School Cluster Quiz Interpreting Data
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Three students take equivalent stress tests. Which is the highest relative score (meaning which has the largest z score value)? A score of 144 on a test with a mean of 128 and a standard deviation of 34. A score of 90 on a test with a mean of 86 and a standard deviation of 18. A score of 18 on a test with a mean of 15 and a standard deviation of 5.
standard deviation of a mean

[DOC File]Z-Score Practice Worksheet
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On the NLAI, the groups' average standard scores are 102, 95, and 94, suggesting that the scores for African American and Hispanic American children are 1/3 of a standard deviation away from the mean and 7 and 8 points, respectively, below the European American children.
standard deviation definition

[DOC File]Name:
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__B___5. Mean of most composite standard scores __E___6. Size of standard deviation for most composite standard scores. A. 70. B. 100. C. 68. D. 16. E. 15. F. 130. G. None of the above. Fill in the blanks: Three years ago, Jason had a standard score of 85 on a reading comprehension test. His percentile rank was __16___. On recent testing, his ...
one standard deviation of the mean

[DOC File]Scores and What They Mean - Region 10 Website
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Dec 08, 2011 · The population standard deviation is 100 hours. A random sample of 64 light bulbs indicates a sample mean life of 350 hours. a. At the 0.05 level of significance, is there evidence that the mean life is different from 375 hours? b. Compute the p- value and interpret its meaning. c.
standard deviation higher than mean

[DOC File]Standard deviation - 清華大學物理學系
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His standard deviation on this most recent test was____. POST. Three years ago, Jason had a standard score of 85 on a reading comprehension test. His percentile rank was _____. On recent testing, his standard score was 70, which is a percentile rank of ____. His standard deviation on this most recent test was____. PRE POST True or False: (T/F)
standard deviation of the mean definition

[DOC File]Scores and What They Mean - Region 10 Website
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He found the mean weight gain for the new food to be 12.8 grams with a standard deviation of 3.5 grams. Later he realized that the scale was out of calibration by 1.5 grams (meaning that the scale weighed items 1.5 grams too much). What should the mean and standard deviation be for the new food? 6) Girls at GBHS have an average height of 65.5 ...
mean deviation vs standard deviation

Standard deviation - Wikipedia
Standard Deviation/Standard/Scaled Score Correspondence Standard Deviation (SD) Standard Score Scaled Score 2 SD above mean 130 or above 16 or above 1 SD above mean Between 115 and 130 Between 13 and 16 Within 1 SD of mean Between 85 and 115 Between 7 and 13 1 SD below mean Between 70 and 85 Between 4 and 7 1.5 SD below mean 77.5 5.5 2 SD below ...
calculate mean and standard deviation

[DOC File]JustAnswer
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Data distributions are shown for the taste quality of a farm’s red apples at different points in time during the harvest season.Which summary statistics would be best to use to compare the two data sets and why?A.The median and the interquartile range because the data sets are normally distributed.B.The mean and standard deviation because the data sets are normally distributed.
what does 1 standard deviation mean

[DOC File]Standard Deviation/Standard Score Correspondence
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Said more formally, the standard deviation is the root mean square (RMS) deviation of values from their arithmetic mean. For example, in the population {4, 8}, the mean is 6 and the deviations from mean are {-2, 2}. Those deviations squared are {4, 4} the average of which (the variance) is 4. Therefore, the standard deviation is 2.
standard deviation of a mean

Standard deviation of the mean meaning