Z score

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\fhe number of blood cells in a sample. The red blood cell count (in millions per cubic mictolitre) is normally . nd a standard deviation of 0.3. a red blood cell count that is less than 4? e a count between 4.7 and 5.0? c] What ted blood cell count would someone have if 95% of people have a lower count? 3. Determine the percent of the data between each pair of z-scores. a) z = -2.88 and z = - 1.47 b) z = -0.85 and z = 1.64 4. What z-score is required for each situation? a) 10% of the data is to the left of the z-score. b) 10% of the data is to the right of the z-score. c) 60% of the data is below the z-score. d) 60% of the data is above the z-score.6. Determine the percent of the data to the left of each asccre, 3) 2120.56 [3) Z: FF-1'76 C) Z: -2'93 d) 32239 7. Determine the percent of the data to the right of'each zscore, a) z : 1.35 h) z = 2-63 C) E = 0-68 d) 3:: cm 8. Determine the percent nfthc data between each pair DICEscore; a) 2:: 0.24 andz= 2.53 '3) Z: 1.64 antic: 1.64 Standard 10. Meg wonders if she should consider a career in the sciences, because Test Results Meg's she does well in mathematics. However, she also does well in English (% ) Mark and has thought about becoming a journalist. Subject (%) a) Determine the z-score for each of Meg's marks. English b) Which subject is Meg better in, relative to her peers? 77 6.8 93 c) What other factors should Meg consider? math 74 5.4 91 11. A hardwood flooring company produces flooring that has an average thickness of 175 mm, with a standard deviation of 0.4 mm. For premium-quality floors, the flooring must have a thickness between 174 mm and 175.6 mm. What percent, to the nearest whole number, of the total production can be sold for premium-quality floors