AaBbccDo AaBbccoc AaBbCo AaBboc AaBl A a am. T Normal No spaci... Heading 1 Head

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AaBbccDo AaBbccoc AaBbCo AaBboc AaBl A a am. T Normal No spaci... Heading 1 Heading 2 Title Paragraph 11. Under what circumstance scorethat is15 pointsabovethe n be considered an extreme score? 12. Avery bright student is described as having an IQthat is three standard deviations above the mean. If this student'sIQis reported asa z score, the z-score would be 13. of the following z-score values, which one represents the location cosest to the mean? 14. Apopulation of scoreshas o -20. In this population, ascore of x 80 correspondstoz +0.25. What is the population mean? 15. A set of score has a meanof u 63 and a standard deviation of o 8. If these scores are standardized so that the new distribution has 50 and o 10, what new value would be obtained for a score of X 59 from the original distribution? 16. A population with u 85 and 12 is transformed into z-scores.Afterthe transformation, the population of z-scores will have a standard deviation of 17. of the following z-score values, whichone represents the most extreme location on the left- hand side of the distribution? 18. For the past 20 years, the high temperature on April 15 has averaged 62 degreeswith a standard deviation of o 8. Last year, the high temperature was 66 degrees. Based on this information, last years temperature on April 15th was 19. In a population with a 8, a score of X 42 corresponds to a z score of z 50. What is the population mean? 20. Last week Tom had examsinstatistics and in English. He scored 10 points above the mean on both exams. From this information, you can conclude:

Explanation / Answer

11. The z value which is usually greater than 3 is can be considdered as 15. Under these circumcstances we should have 3*standard deviation = 15 => standard deviation = 15/3 =5

12. Z score after 3 standaerrd deviations = 0.0013

But this is usually considered as extremes

13. The mean for standard normal distribution is zero. Please provide the data for this question

14.Given (mean-80)/20 = 0.25

=> mean = 85

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