
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The scores on a university examination are
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- A large chemistry course took their final exam. The mean was 75 with a standard deviation of 8. What are the exam scores that separate the top and bottom 5 percent of the class (extreme 10%) ?arrow_forwardKathy is a business administration major at Florida State University. She is comparing her performanceon her recent midterm exams. Kathy scored an 82 on her accounting exam and an 88 on her managementexam.The mean and standard deviations of the two exams are shown in the table below Course Mean Standard deviation Accounting 70 10 Management 90 4 a. What is the z-score on the Accounting exam? b. What is the z-score on the Management exam? c. On which of the exams did Kathy perform RELATIVELY better? EXPLAIN.arrow_forwardOn a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90, what was his z-score?arrow_forward
- Use z scores to compare the given values. The tallest living man at one time had a height of 225 cm. The shortest living man at that time had a height of 136.8 cm. Heights of men at that time had a mean of 173.31 cm and a standard deviation of 5.54 cm. Which of these two men had the height that was more extreme?arrow_forwardA large chemistry course took their final exam. The mean was 75 with a standard deviation of 8. What are the exam scores that separate the middle 10% of the class (5% on each side of the mean)?arrow_forwardWhat would a histogram look like if the mean is 50 the median is 50 and the standard deviation is 1.6?arrow_forward
- The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances that someone is earning more than $20 an hour?arrow_forwardFind the length that separates premature babies from those who are not premature.arrow_forwardSkye High School has a total of 500 graduates. The mean SAT score of Skye High School graduates is 947 with a standard deviation of 205. To get into a premier college, a student must score 1000 or more. If 60 students are selected at random, how many graduates can Skye High School expect to get into a premier college?arrow_forward
- A line for tickets to a broadway show had a mean waiting time of 20 minutes with a statistic deviation of 5 minutes. What Percentage of People in line waited for more than 28 minutes?arrow_forwardAccording to the U.S. Census, the average adult woman is the United States is 65 inches tall and the standard deviation is 3 inches. If Zsike is 67 inches tall, what is her z-score?arrow_forwardSuppose the exam average in a class is 55% with a standard deviation of 4. What proportion of students scored about 57%. Round two places.arrow_forward
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