Z score table above

    • [PDF File]What is DXA? The Z-score: How do I read my results? The “age

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      The Z-score: The “age-matched” or Z-score compares your BMD to what might be expected in someone your age and body size. Again, the Z-score is in units of standard deviations and shows whether your bones are more dense (+), or less dense ( -) than what might be expected. At young ages, the T-score and Z-score values will be similar.


    • [PDF File]Z-Scores - Discovering Statistics

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      Convert the Raw Score to a Z-score s z =X−X 15 z =130−100 15 z =30 z =2 Look up the proportion in the z-score table • The diagram shows that we are interested in the area above 130 (shaded). • Look in column labelled area above z. • when z = 2, area beyond = 0.02280.0228. Percentage =100×0.0228=2.28% Conclusion • 2.28% of people ...


    • [PDF File]A. Determining Proportions with z Scores Example 1: x ...

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      There is a .4920 or 49% probability that z is < -.022. B. Determining Exact Percentiles with z scores Example 1: Using the data above, what IQ must a person have in order to be in the top 1% of IQs? 1. Find x of 1% or .01, which is the area beyond z. 2. So, find the z score in the table that is closest to .01. 3. z = 2.33 is closest to .01


    • [PDF File]The Z-test - University of Washington

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      a z-score: z= ( x hyp) ˙ x = (212:79 210) 1:31 = 2:13 This will be a one tailed test because we’re only rejecting H0 if our observed mean is signi cantly larger than 210. To make our decision we need to nd the critical value of z, which is the z for which the area above is 0.05. Looking at our z-table for = 0:05: 2


    • [PDF File]Standard Normal Distribution Table

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      Standard Normal Distribution Tables STANDARD NORMAL DISTRIBUTION: Table Values Re resent AREA to the LEFT of the Z score. -3.9 -3.8 -3.6 -3.5


    • [PDF File]Z-tables

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      R has two functions that give you values in the z-table. ’pnorm’ converts z-scores to areas, and ’qnorm’ converts areas to z-scores. The R commands shown below can be found here: zTable.R # The z-distribution # # R’s function ’pnorm’ calculates the area under the normal distribution # below a z-score.


    • [PDF File]Z-Score Practice Worksheet - New Providence School District

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      7.2 Z-Score Practice Worksheet . 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 of 60, where the mean score of the sample data values is 40. b) A score of 80, where the mean score of the sample data values is 30.


    • [PDF File]Growth charts and Z-scores - wickUP

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      50 per cent above or under the 50th percentile . 50th percentile measurements correspond to the mean and median ... corresponds approximately to a Z score +2 . A Z-score of +3 or -3 is more likely to be definitely abnormal. Percentile graph. Z score graph. NCHS or WHO charts


    • [PDF File]z-SCORES - University of West Georgia

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      Sign: Whether score is above (+) or below (-) the mean Number: Distance between score and mean in standard deviation units Example z = +1.00 o Sign: positive (+) so score is above the mean o Number: 1.00 SD units from the mean Z-SCORES 7


    • [PDF File]Z-Score Equivalents Table

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      Z-Score Equivalents Table Conversion of Z-Scores to Standard Scores (Mean = 100; Standard Deviation = 15) Z-Score (M=0; SD=1) Standard Score (SS) (M=100; SD=15) Z-Score (M=0; ... Locate the Z-Score you want to convert in the left column. Read across to the right column to find the corresponding Standard Score. Title: Table I


    • [PDF File]APPENDIX B - WebAssign

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      TABLE B.1 Proportions of Area under the Standard Normal Curve: The Unit Normal Table Column (A) lists z-score values.Column (B) lists proportion of the area between the mean and the z-score value.Column (C) lists the proportion of the area beyond the z-score in the tail of the distribution.(Note: Because the normal distribution is symmetrical,


    • [PDF File]STU Z Table - University of Arizona

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      STANDARD NORMAL DISTRIBUTION: Table Values Represent AREA to the LEFT of the Z score. Z .00 .01 .02 .03 .04 .05 .06 .07 .08 .09 0.0 .50000 .50399 .50798 .51197 .51595 ...


    • [PDF File]Lesson 7 Z-Scores and Probability

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      lies above a z-score of +1? If we look this z-score up on the table we find that the area in the body is .8413 and the area in the tail is.1587. Since the z-score is positive and we want the area above the z-score, then we will want to look at the tail area. So, .1587 is the proportion in the population that have a z = 1 or more.


    • [PDF File]Regression: Standardized Coefficients - B W Griffin

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      1.00. One may use the following formula to calculate a Z score: Z = sd −. X M where X is the raw score, M is the mean, and sd is the standard deviation. Each of the three sets of scores in Table 1 is converted below to Z scores. The M and sd are provided above in the SPSS output. Achievement converted to Z score: ZAchievement


    • [PDF File]TABLE C.1 The Unit Normal Table - WebAssign

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      •••Appendix C Statistical Tables TABLE C.1 The Unit Normal Table Column (A) lists z-score values.Column (B) lists the proportion of the area between the mean and the z-score value. Column (C) lists the proportion of the area beyond the z score in the tail of the distribution. (Note: Because the normal distribution is symmetrical, areas for negative z scores are the same as those for ...


    • [PDF File]The Normal Distribution - University of Central Arkansas

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      How to Use Table A.2: The values in this table represent the proportion of areas in the standard normal curve, which has a mean of O, a standard deviation of 1.00, and a total area equal to 1.00. The raw scores must first be transformed into a z score. Column A represents this z score, Column B represents the distance between the mean of the


    • [PDF File]What is a Z score - Iowa State University

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      Table of Z scores: This table tells us how much area is above (or below, if the z value is negative) the mean. So, for a Z score of 1.15 we would read down to 0.00 column to 1.1, and then read over to the .05 column: 1.1 + .05 = 1.15. The area under the curve is 35.31 percent. As the mean value represents the 50th percent score, then 50 + 35.31 ...


    • [PDF File]Standard deviation of anthropometric Z-scores as a data ...

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      The Z-score system expresses an-thropometric values as several standard deviations (SDs) below or above the reference mean or median value. Because the Z-score scale is linear, summary sta-tistics such as means, SDs and standard errors can be computed from Z-score values. Z-score summary statistics are also helpful for grouping growth data


    • [PDF File]Z Score Table - University of Pennsylvania

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      Z Score Table- chart value corresponds to area below z score. z 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00 –3.4 0.0002 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003


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