Answered: 22.4, 32.3, 56.8, 66.5, 70.4, 88.9…

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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About 7% of the population has a particular genetic mutation. 183 people are randomly selected.Find the mean for the number of people with the genetic mutation in such groups of 183. Find the standard deviation for the number of people with the genetic mutation in such groups of 183. (Round to the nearest 2 decimal places.
9,8,7,6,5,4,3,2 Using the above numbers, calculate the population mean. If 5 points were added to every score in the population, what would be the new mean and standard deviation. If every score was multiplied by five, what would be the new standard deviation?
A large study of the heights of 550 adult men found that the mean height was 71 inches tall. The standard deviation was 7 inches. If the distribution of data was normal, what is the probability that a randomly selected male from the study was between 50 and 85 inches tall? Use the 68-95-99.7 rule (sometimes called the Empirical rule or the Standard Deviation rule). For example, enter 0.68, NOT 68 or 68%. Answer = (Write your answer in decimal form, not percentage form. For example, if your percentage is 99%, enter 0.99, not 99. Round your answer to three decimal places.) Caution: Using tables or Excel for this may produce a wrong answer. Use the 68-95-99.7 rule.
Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 100 minutes and a standard deviation of 15 minutes. What proportion of 1040R tax forms will be completed in at least 128 minutes? Round you answer to at least four decimal places.
Nine independent measurements are made of the length of a rod. The average of the nine measurements is = 5.238 cm, and the standard deviation is s = 0.081 cm. Is the uncertainty in the value 5.238 cm closest to 0.009, 0.027, or 0.081 cm? Explain. b. Another rod is measured once by the same process. The measurement is 5.423 cm. Is the uncertainty in this value closest to 0.009, 0.027, or 0.081 cm? Explain. a.
Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 100 minutes and a standard deviation of 10 minutes. What proportion of 1040R tax forms will be completed in at least 111 minutes? Round your answer to at least four decimal places.
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12. How would your approximation of the actual mean and actual standard deviation change if you would have randomly selected 10 drivers instead of 5? Explain.
bout 4% of the population has a particular genetic mutation. 300 people are randomly selected.Find the standard deviation for the number of people with the genetic mutation in such groups of 300. (Remember that standard deviation should be rounded to one more decimal place than the raw data, in this case 1 decimal place is necessary.)
Assume that a certain data is approximately bell-shaped with mean 91 and standard deviation 6. Use the Empirical Rule to find the percent of the data between 85 and 103. Show all the necessary calculations.
suppose the profit a Honda dealership makes on the next 5 Accords it sells are:545, 991, 902, 1,480, 1,383. Calculate the standard deviation of the sample. (please express your answer using 2 decimal places)
Suppose that another sample of resting heart rates for five MAT 110 students was obtained: 72, 68, 66, 69, and 74 beats per minute. The standard deviation of this sample is approximately 3.19 BPM. Are the data values in this sample, or in your sample more spread out? Explain how you know. The resting heart rates for the other students were 66,67,69,70 and 71 with a deviation of 3.438

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22.4, 32.3, 56.8, 66.5, 70.4, 88.9 Use the defining formula to compute the population standard deviation ?.