PSY3204 CHAPTER 5 QUIZ - P SY3204 C HAPTER 5 QU IZ Exhibit...

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Unformatted text preview: P SY3204 C HAPTER 5 QU IZ Exhibit 5-5 L et's assume that the scores are normally distributed on a test with a p opulation mean of 75 and standard deviation equal to 16. 1. Refer to Exhibit 5-1. What is the percentile rank of a score of 56? 11.70 Exhibit 5-1 A stockbroker has kept a daily record of the value of a pa rticular stock over the years and finds that prices of the stock form a normal d istr ibution with a mean of $8.52 with a standard deviation of $2.38. 2. Refer to Exhibit 5-1. The percentile rank of a price of $13.87 is ____. 98.78 3. Refer to Exhibit 5-1. What percentage of the distribution lies between $5 and $11? 78.41 4. Refer to Exhibit 5-1. What percentage of the distribution lies below $7.42. 32.28 5. Refer to Exhibit 5-1. The stock price beyond which 0.05 of the d istribution falls is ____. 12.44 6. Refer to Exhibit 5-1. The percentage of scores that lie between $9.00 and $10.00 is ____. 15.31 7. The mean of the z distribution equals ____. 0 Exhibit 5-4 A d ist ribution has a mean of 60.0 and a standard deviation of 4.3. 8. Refer to Exhibit 5-4. The raw score corresponding to a z score of 0.00 is ____. 60.0 9. Refer to Exhibit 5-4. The raw score corresponding to a z score of 1.51 is ____. 53.5 10. Refer to Exhibit 5-4. The raw score corresponding to a z score of 2.02 is ____. 68.7 11. Refer to Exhibit 5-4. If a population of scores is normally d istributed, has a mean of 45 and a standard deviation of 6, the most extreme 5% of the scores lie beyond the score(s) of ____. 56.76 and 33.24 12.The proportion of scores less than z = 0.00 is _____. 0.50 13. How much would your income be if i ts z score value was 2.58? Cannot be determined 14. Which of the following z scores represent(s) the most extreme value in a distribution of scores assuming they are normally d istributed? -3.12 15. Given the following set of sample raw scores, X: 1, 3, 4, 6, 8. W hat is the z t ransformed value for the raw score of 3? -0.52 ...
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This note was uploaded on 06/20/2011 for the course PSYCHOLOGY 3204 taught by Professor Someone during the Summer '11 term at University of Central Florida.

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PSY3204 CHAPTER 5 QUIZ - P SY3204 C HAPTER 5 QU IZ Exhibit...

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