**Problem Statement:**Assume that 30.8% of people have sleepwalked. Assume that in a random sample of 1459 adults, 487 have sleepwalked.- **a.** Assuming that the rate of 30.8% is correct, find the probability that 487 or more of the 1459 adults have sleepwalked. - **b.** Is that result of 487 or more significantly high?- **c.** What does the result suggest about the rate of 30.8%?---**Task Details:**- **a.** Assuming that the rate of 30.8% is correct, the probability that 487 or more of the 1459 adults have sleepwalked is \_\_\_ (Round to four decimal places as needed).- **Response Options:** - "Help me solve this" - "View an example" - "Get more help"- **Tools:** - "Clear all" - "Check answer"

Answered: Image /qna-images/answer/e5cae1cb-fbed-4708-844e-cc59a08347ff.jpg

Answered: 5 Assume that 30.8% of people have…

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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9.) The mean starting salary for teachers is $53,475 nationally. The standard deviation is approximately $5,250. Assume that the starting salary is normally distributed. a.) State the random variable. b.) Find the probability that a starting teacher will make more than $60,000. c.) Find the probability that a starting teacher will make less than $50,000. d.) Find the probability that a starting teacher will make between $52,000 and $59,500. e.) If a teacher made more than $61,000, would you think the teacher was overpaid? Why or why not?
10.2.% of the population is 65 or older . Find the probability that the following number of persons selected at random from 50 people are 65or older . The probability that at most 2 are 65 or older is ?
6.6
The probability is 0.4 that a traffic fatality involves an intoxicated or alcohol-impaired driver or nonoccupant. In six traffic fatalities, find the probability that the number, Y, which involve an intoxicated or alcohol-impaired driver or nonoccupant is a. exactly three; at least three; at most three. b. between two and four, inclusive. c. Find and interpret the mean of the random variable Y. a. The probability that exactly three traffic fatalities involve an intoxicated or alcohol-impaired driver or nonoccupant is nothing. (Round to four decimal places as needed.) The probability that at least three traffic fatalities involve an intoxicated or alcohol-impaired driver or nonoccupant is nothing. (Round to four decimal places as needed.) The probability that at most three traffic fatalities involve an intoxicated or alcohol-impaired driver or nonoccupant is nothing. (Round to four decimal places as needed.) b. The probability that between two and four…
Assume that 26.6% of people have sleepwalked. Assume that in a random sample of 1517 adults, 418 have sleepwalked. a. Assuming that the rate of 26.6% is correct, find the probability that 418 or more of the 1517 adults have sleepwalked. b. Is that result of 418 or more significantly high? c. What does the result suggest about the rate of 26.6%?
A poll asked people with and without children under 18 years old if they frequently experienced stress. The results are shown in the accompanying table. Complete parts (a) through (c) below. Frequently Experience Stress Yes No Total With child under 296 234 530 18 уears No child under 196 314 510 18 years Total 492 548 1040 a. Find the probability that a randomly chosen person from this group said "Yes," given that the person has a child under 18 years old. (Type an integer or decimal rounded to four decimal places as needed.) b. Find the probability that a randomly chosen person from this group said "Yes," given that the person does not have a child under 18 years old. (Type an integer or decimal rounded to four decimal places as needed.) c. Find the probability that a randomly chosen person from this group said "Yes" or had a child under 18 years old. (Type an integer or decimal rounded to four decimal places as needed.)
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Based on a smartphone survey, assume that 51% of adults with smartphones use them in theaters. In a separate survey of 248 adults with smartphones, it is found that 110 use them in theaters. a. If the 51% rate is correct, find the probability of getting 110 or fewer smartphone owners who use them in theaters. b. Is the result of 110 significantly low? a. If the 51% rate is correct, the probability of getting 110 or fewer smartphone owners who use them in theaters is (Round to four decimal places as needed.) b. Is the result of 110 significantly low? v because the probability of this event is v than the probability cutoff that corresponds to a significant event, which is Question Viewer Enter your answer in the answer box. ? PAGES 1377 NOV W 14 MacBook Air DII 80 888 F10 F6 F7 F8 F3 F4 F5 %24 2 3 4 7 R T. Y く0 E.
Assume that when human resource managers are randomly selected, 38% say job applicants should follow up within two weeks. If 30 human resource managers are randomly selected, find the probability that exactly 23 of them say job applicants should follow up within two weeks. a.The probability is?
Assume that 38.2% of people have sleepwalked. Assume that in a random sample of 1466 adults, 597 have sleepwalked. a. Assuming that the rate of 38.2% is correct, find the probability that 597 or more of the 1466 adults have sleepwalked. b. Is that result of 597 or more significantly high? c. What does the result suggest about the rate of 38.2%? a. Assuming that the rate of 38.2% is correct, the probability that 597 or more of the 1466 adults have sleepwalked is (Round to four decimal places as needed.) v an example Resume Get more help g Σ E Ih 8 Clear all 9 sabaha olan maram 0 amand mms hoclate elemen f D Check answer Ha Ma
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