MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Assuming that the heights of college women are
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- If the standard error, of a sample data set is 5 and the standard deviation, of the distribution is 45, how many data points, n are in the sample data set?arrow_forwardDefine the term standard deviation?arrow_forwardSuppose that the heights of 4-year old boys are normally distributed with a mean of 103cm and a standard deviation of 4.05. What height represents the 95th percentile?arrow_forward
- What raw score is needed to be in the top 8%? Mean is 90Standard Deviation is 7.8arrow_forwardSteel rods are manufactured with a mean length of 28 centimeters. because because of variability in the manufacturing process, the lengths of the rods are approximately normally distrubuted with a standard deviation of 0.06. Any rods that are shorter than 27.85 cm or longer than 28.15 cm are discarded. What proportion of rods will be discarded? Round to 4 decimal places.arrow_forwardAssume that the mean amount of coffee dispensed is 6 ounces and a standard deviation is 0.5 ounce use the empirical rule. What percent of cups should have at least 6 ounces and what percent of cups should have less then 4.5 ounces of coffee?arrow_forward
- A survey found that women's heights are normally distributed with mean 62.3 inches and standard deviation 2.2 inches. Most of the live characters employed at an amusement park have height requirements of at least 54 inches Find the percentage of women meeting the height requirement?arrow_forwardThe lengths of a particular animal's pregnancies are approximately normally distributed, with mean = 251 days and standard deviation = 12 days. What proportion of pregnancies lasts between 248 and 257 days?arrow_forwardAccording to a recent report the battery life for a new line of laptop computers has a mean of 9 hours with a standard deviation of 2.4 hours. If battery life is normally distributed what percentage of new laptops will last between 8 and 11 hours on a single charge?arrow_forward
- The average wage for bank managers in a certain city is $91,900 per hour with a standard deviation of $24,300. What should be the hourly wage for an administrator if he/she wishes to earn less than 25% of all employees?arrow_forwardSuppose that annual precipitation is normally distributed, with mean 50 inches, and standard deviation 12 inches. Find the 65th percentile of the precipitation distributionarrow_forwardThe age of student at a university are normally distributed with a mean of 20. What percentage of the student body is at least 20 years old?arrow_forward
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