Question 8Suppose that the scores on a statewide standardized test have a bell shape distribution with a mean of 80and a standard deviation of 3. Estimate the percentage of scores that were(a) between 71 and 89.(b) above 83.(c) below 71.(d) between 77 and 89.Submit Question88°FA Dhpinort sc14416 10&79.4.5

Answered: Suppose that the scores on a statewide…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Lecture(10.1): The mean of the population is 50. The standard deviation is 10. (a) What is the probablity that a randomly selected person from a population has a mean score between 50 and 75 ? (b) if a person Z score is 1.38. what is his raw score? (c) if a person has raw score of -.91. What is his raw score?.
Human body temperatures have a mean of 98.20°F and a standard deviation of 0.62°F. Convert 103.00°F to a z-score and determine if it is usual or unusual. Unusual means that the z-score is more than two standard deviation's below or above the mean. Show work please!
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The chart to the right shows that a professor's grading distribution is bell shaped, or normally shaped. The mean of the distribution is 74 and the standard deviation is 9. Using a Continuous Variable Normal Bell Distribution Model, calculate the minimum test score needed to score in the top 5% of the class. Complete your work in the worksheet by listing the formula inputs, labels for the formula inputs and make your calculations with formulas. This test problem is similar to what you studied in video # 32, 33 and 34 and homework problems # 17, 21 and 23. Relative Frequency Frequency Professor looks at all test score for a particular test (this is population data), and observes: 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Mean = 74 Median = 74 Mode = 73 SD=9 0 0 0 up to 10 up 10 to 20 0 20 up to 30 0 30 up to 40 2 40 up to 50 29 50 up to 60 X = Score 112 60 up to 70 225 70 up to 80 111 80 up to 90 21 2 90 up 100 up to 100 to 110

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Suppose that the scores on a statewide standardized test have a bell shape distribution with a mean of 80 and a standard deviation of 3. Estimate the percentage of scores that were (a) between 71 and 89. (b) above 83. (c) below 71. (d) between 77 and 89. % Submit Question