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Feb 20, 2024

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Student: Finzel Rapelo Date: 09/12/23 Instructor: Annette Keddington Course: Psych 258 42983 Online B Assignment: Week/Chapter 3 Homework Question content area top Part 1 On a measure of anxiety, the mean is 8686 and the standard deviation is 1818 (scores on the measure can vary from 00 to 150150). What are the Z scores for each of the following raw scores? (a) 122122, (b) 9393 and (c) 6868. Question content area bottom Part 1 A Z score is the number of standard deviations the actual score is above or below the mean. Part 2 A raw score can be changed to a Z score by subtracting the mean from the raw score, then dividing the result by the standard deviation. Part 3 The formula to change a raw score to a Z score is given below, where X is the raw score, M is the mean, and SD is the standard deviation. Z equals= StartFraction Upper X minus Upper M Over SD EndFractionX−MSD Part 4 Identify the mean and standard deviation for the measure of anxiety. M equals= 8686 SD equals= 1818 Part 5 (a) Use the formula to figure the Z score for a raw score of 122122. First figure the deviation score by subtracting the mean from the raw score. Z equals= StartFraction Upper X minus Upper M Over SD EndFractionX−MSD equals= StartFraction 122 minus 86 Over 18 EndFraction122−8618 equals= StartFraction 36 Over 18 EndFraction3618 Part 6 Figure the Z score for a raw score of 122122 by dividing the deviation score by the standard deviation. Z equals= StartFraction 36 Over 18 EndFraction3618 equals= 2.002.00

Part 7 (b) Use the formula to figure the Z score for a raw score of 9393. First figure the deviation score by subtracting the mean from the raw score. Z equals= StartFraction Upper X minus Upper M Over SD EndFractionX−MSD equals= StartFraction 93 minus 86 Over 18 EndFraction93−8618 equals= seven eightteenths718 Part 8 Figure the Z score for a raw score of 9393 by dividing the deviation score by the standard deviation, rounding to two decimal places. Z equals= seven eightteenths718 equals= 0.390.39 Part 9 (c) Use the formula to figure the Z score for a raw score of 6868. First figure the deviation score by subtracting the mean from the raw score. Z equals= StartFraction Upper X minus Upper M Over SD EndFractionX−MSD equals= StartFraction 68 minus 86 Over 18 EndFraction68−8618 equals= StartFraction negative 18 Over 18 EndFraction−1818 Part 10 Figure the Z score for a raw score of 6868 by dividing the deviation score by the standard deviation. Z equals= StartFraction negative 18 Over 18 EndFraction−1818 equals= negative 1.00−1.00 Paper size Letter Print

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