# D the z score of 100 is most preferable because it is

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D. The z score of 1.00 is most preferable because it is 1.00 standard deviation above the mean and would correspond to an above average test score. E. The z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores.
10/5/2018 Module 9 Final Exam Review Homework: Textbook Chap-abel levine 8/31 21. Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was Mbps. The complete list of 50 data speeds has a mean of Mbps and a standard deviation of s Mbps. 77.1 x = 18.67 = 19.71 a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the carrier's highest data speed to a z score. d. If we consider data speeds that convert to z scores between 2 and 2 to be neither significantly low nor significantly high, is the carrier's highest data speed significant? 22. 23. 24. 25. The difference is Mbps. 58.43 (Type an integer or a decimal. Do not round.) b. The difference is standard deviations. 2.96 (Round to two decimal places as needed.) c. The z score is z . = 2.96 (Round to two decimal places as needed.) d. The carrier's highest data speed is significantly high. Use z scores to compare the given values. The tallest living man at one time had a height of cm. The shortest living man at that time had a height of cm. Heights of men at that time had a mean of cm and a standard deviation of cm. Which of these two men had the height that was more extreme? 240 115.2 172.96 7.24 Since the z score for the tallest man is z and the z score for the shortest man is z , the man had the height that was more extreme. = 9.26 = − 7.98 tallest (Round to two decimal places.) Fill in the blank. When a data value is converted to a standardized scale representing the number of standard deviations the data value lies from the mean, we call the new value a _______. When a data value is converted to a standardized scale representing the number of standard deviations the data value lies from the mean, we call the new value a z-score. Fill in the blank. A data value is considered _______ if its z-score is less than 2 or greater than 2. A data value is considered if its z-score is less than 2 or greater than 2. significantly low or significantly high Fill in the blank. Whenever a data value is less than the mean, _______. Whenever a data value is less than the mean, the corresponding z-score is negative. Fill in the blank. The classical approach to probability requires that the outcomes are _______. The classical approach to probability requires that the outcomes are equally likely. 26. Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was Mbps. The complete list of 50 data speeds has a mean of Mbps and a standard deviation of s Mbps. 77.1 x = 18.67 = 19.71 a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the carrier's highest data speed to a z score. d. If we consider data speeds that convert to z scores between 2 and 2 to be neither significantly low nor significantly high, is the carrier's highest data speed significant? a. The difference is Mbps. 58.43 (Type an integer or a decimal. Do not round.) b. The difference is standard deviations. 2.96 (Round to two decimal places as needed.) c. The z score is z . = 2.96 (Round to two decimal places as needed.) d. The carrier's highest data speed is significantly high. Use z scores to compare the given values. The tallest living man at one time had a height of cm. The shortest living man at that time had a height of cm. Heights of men at that time had a mean of cm and a standard deviation of cm. Which of these two men had the height that was more extreme? 240 115.2 172.96 7.24 Since the z score for the tallest man is z and the z score for the shortest man is z , the man had the height that was more extreme. = 9.26 = − 7.98 tallest (Round to two decimal places.) Fill in the blank. When a data value is converted to a standardized scale representing the number of standard deviations the data value lies from the mean, we call the new value a _______. When a data value is converted to a standardized scale representing the number of standard deviations the data value lies from the mean, we call the new value a z-score. Fill in the blank. A data value is considered _______ if its z-score is less than 2 or greater than 2. A data value is considered if its z-score is less than 2 or greater than 2. significantly low or significantly high Fill in the blank. Whenever a data value is less than the mean, _______. Whenever a data value is less than the mean, the corresponding z-score is negative. Fill in the blank. The classical approach to probability requires that the outcomes are _______. The classical approach to probability requires that the outcomes are equally likely.
10/5/2018 Module 9 Final Exam Review Homework: Textbook Chap-abel levine 9/31 27.
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