Z score of 3

    • [PDF File]Descriptive Statistics and Psychological Testing

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      scaled scores by multiplying the given score by 3 (the standard deviation of the distribution of scaled scores), and Z-adding 10 (the mean of the distribution of scaled scores) to this product. For example, a Z-score of –1 equals a scaled of 7 [10 + 3(-1) = 7]. The formula for transforming Z-score into a scaled score is a follows:


    • [PDF File]Standard normal probabilities

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      Tables • T-3 Table entry for z is the area under the standard normal curve to the left of z. Probability z TABLE A Standard normal probabilities (continued) z.00 ...


    • [PDF File]The Use of Credit Scoring Models and the Importance of a ...

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      Average Z-Score by S&P Bond Rating S&P 500: 1992 - 2001 Rating # Firms Average Z Score SD Average Z Score SD Average Z Score SD Average Z Score SD Average Z Score SD AAA 66 6.20 3.06 5.02 1.60 4.38 1.38 4.51 1.50 5.26 2.19 AA 194 4.73 2.36 4.30 1.91 4.05 1.83 4.03 1.89 4.23 2.09 A 519 3.74 2.29 3.61 2.26 3.47 2.01 3.61 2.18 3.92 3.26


    • [PDF File]Determining appropriate inventory levels is one of the ...

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      Z-score 84 1 85 1.04 90 1.28 95 1.65 97 1.88 98 2.05 99 2.33 99.9 3.09 inventory equal to 1.65 standard deviations of demand variability. This is equivalent to a Z-score of 1.65. To further understand Z-score, imagine that no safety stock is carried. In this situation, the Z-score is zero. even so, there will be enough inventory to meet demand


    • [PDF File]Table Z: Areas under the standard normal curve (negative Z)

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      3.9 * 1.0000 * For values of z ≥ 3.90, the areas are 1.0000 to four decimal places. Table T: Critical values for the Student's T distributions two tail probability 0.20 0.10 0.05 0.02 0.01 one tail probability 0.10 0.05 0.025 0.01 0.005 df df 1 3.078 6.314 12.706 31.821 63.657 1


    • [PDF File]Normal Distributions

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      \z-score of Z" has a standard normal distribution. The value of Zgives the number of standard deviations between Xand the mean (negative values are values below the mean, positive values are values above the mean). Standardizing To calculate P(a6 X6 b), where Xis a normal random



    • [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


    • [PDF File]P(Z Cumulative Probabilities of the Standard Normal ...

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      Cumulative Probabilities of the Standard Normal Distribution N(0, 1) Left-sided area Left-sided area Left-sided area Left-sided area Left-sided area Left-sided area


    • [PDF File]PSYCHOMETRIC CONVERSION TABLE Standard Score Percentile ...

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      Standard Score Percentile Rank Scaled Score ETS Score T-Score Z-Score Description 150 >99.9 Very Superior 149 >99.9 Very Superior 148 99.9 Very Superior 147 99.9 Very Superior 146 99.9 Very Superior 145 99.9 19 800 80 +3.0 Very Superior 144 99.8 Very Superior 143 99.8 Very Superior 142 99.7 775 78 +2.75 Very Superior 141 99.7 Very Superior


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

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      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 standard normal distribution (O) and the z score, and Column C represents the proportion of the area beyond a given z. (continued) The Normal Distribution (continued) Table A.2 0.90


    • [PDF File]z-SCORES - UWG

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      Convert X to z-Score Use Unit Normal Table to convert z-score to corresponding percentage/proportion Example Assume a normal distribution with μ = 100 and σ = 15 What is the probability of randomly selecting an individual with an IQ score less than 130? p(X < 130) = ? Step 1: Convert X to z-Score Z-SCORES 42 2.00 15 30 15 130 100 V X P z


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

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      Z score = 5.7/3.3 = +1.73 . Comparison of growth charts Percentile graphs have a narrower range, because the 97th centile 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]STU Z Table

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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 -3.9 .00005 .00005 .00004 .00004 ...


    • [PDF File]Z-Score Equivalents Table

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      Z-Score (M=0; SD=1) Standard Score (SS) (M=100; SD=15) 4.0 160 -0.6 91 3.9 158 -0.7 89 3.8 157 -0.8 88 3.7 155 --0.9 86 3.6 154 -1.0 85 3.5 152 -1.1 83 3.4 151 -1.2 82 3.3 149 -1.3 80 3.2 148 -1.4 79 3.1 146 -1.5 77 3.0 145 -1.6 76 2.9 143 -1.7 74 2.8 142 -1.8 73 2.7 140 -1.9 71 2.6 139 -2.0 70 ...


    • [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]Normal Distributions; Statistics; AII

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      2. What z-score would be assigned to 6? To 14? To 5? To 20? 3. What data value would have a z-score of −3? Of 4? Of 0? Of 2.5? 4. Write a formula to determine the z-score for any value, x, in this data set. Problem 3 An experiment consists of flipping four coins and recording the number of heads. 1. Complete the table of possible outcomes ...


    • [PDF File]Calculating Z-scores

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      4. z-score above 3 5. z-score between -3 and -2 6. z-score between 0 and 1 7. z-score between -1 and 0.5 8. z-score between -2.7 and -1.3 A data set has a normal distribution with mean 250 and std dev of 30. Find each: 9. Percentage of data values between 200 and 220. 10. Percentage of data values between 245 and 260.



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