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Cashless Society. 40% of consumers believe that cash will be obsolete in the next 20 years (based on a survey by J.P. Morgan Chase). In each of Exercises 15-20, assume that 8 consumers are randomly selected. Find the indicated probability. X 15. Find the probability that exactly 6 of the selected consumers believe that cash will be obso- lete in the next 20 years. XE 16. Find the probability that at least 6 of the selected consumers believe that cash will be obso- lete in the next 20 years. XE 17. Find the probability that fewer than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. XE 18. Find the probability that no more than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. XE 19. Find the probability that none of the selected consumers believes that cash will be obsolete in the next 20 years. XE 20. Find the probability that at least one of the selected consumers believes that cash will be obsolete in the next 20 years. In Exercises 21-24, assume that when human resource managers are randomly selected, 65% of them say that after submitting a résumé, job applicants should follow up within two weeks. X 21. If 10 human resource managers are randomly selected, find the probability that exactly 6 of them say job applicants should follow up within two weeks.

Cashless Society. 40% of consumers believe that cash will be obsolete in the next 20 years (based on a survey by J.P. Morgan Chase). In each of Exercises 15-20, assume that 8 consumers are randomly selected. Find the indicated probability. X 15. Find the probability that exactly 6 of the selected consumers believe that cash will be obso- lete in the next 20 years. XE 16. Find the probability that at least 6 of the selected consumers believe that cash will be obso- lete in the next 20 years. XE 17. Find the probability that fewer than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. XE 18. Find the probability that no more than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. XE 19. Find the probability that none of the selected consumers believes that cash will be obsolete in the next 20 years. XE 20. Find the probability that at least one of the selected consumers believes that cash will be obsolete in the next 20 years. In Exercises 21-24, assume that when human resource managers are randomly selected, 65% of them say that after submitting a résumé, job applicants should follow up within two weeks. X 21. If 10 human resource managers are randomly selected, find the probability that exactly 6 of them say job applicants should follow up within two weeks.

MATLAB: An Introduction with Applications
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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**Cashless Society:** 40% of consumers believe that cash will be obsolete in the next 20 years (based on a survey by J.P. Morgan Chase). In each of Exercises 15–20, assume that 8 consumers are randomly selected. Find the indicated probability. 15. Find the probability that exactly 6 of the selected consumers believe that cash will be obsolete in the next 20 years. 16. Find the probability that at least 6 of the selected consumers believe that cash will be obsolete in the next 20 years. 17. Find the probability that fewer than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. 18. Find the probability that no more than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. 19. Find the probability that none of the selected consumers believes that cash will be obsolete in the next 20 years. 20. Find the probability that at least one of the selected consumers believes that cash will be obsolete in the next 20 years. **In Exercises 21–24, assume that when human resource managers are randomly selected, 65% of them say that after submitting a résumé, job applicants should follow up within two weeks.** 21. If 10 human resource managers are randomly selected, find the probability that exactly 6 of them say job applicants should follow up within two weeks. 22. If 16 human resource managers are randomly selected, find the probability that exactly 12 of them say job applicants should follow up within two weeks. 23. If 20 human resource managers are randomly selected, find the probability that at least 18 of them say job applicants should follow up within two weeks. 24. If 14 human resource managers are randomly selected, find the probability that fewer than 3 of them say job applicants should follow up within two weeks. **In Exercises 25–28, find the probabilities and answer the questions.** 25. *Withers v. Georgia* In the classic legal case of Withers v. Georgia, a jury pool of 90 prospective jurors is to be randomly selected from a population in which 27% were minorities. Before the jury pool was selected, 7 were summoned. Is the result of getting 7 or fewer minorities out of 90 jury pools randomly selected from a population of 27% minorities significantly low? What does the result suggest about the jury selection process?
Transcribed Image Text:**Cashless Society:** 40% of consumers believe that cash will be obsolete in the next 20 years (based on a survey by J.P. Morgan Chase). In each of Exercises 15–20, assume that 8 consumers are randomly selected. Find the indicated probability. 15. Find the probability that exactly 6 of the selected consumers believe that cash will be obsolete in the next 20 years. 16. Find the probability that at least 6 of the selected consumers believe that cash will be obsolete in the next 20 years. 17. Find the probability that fewer than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. 18. Find the probability that no more than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. 19. Find the probability that none of the selected consumers believes that cash will be obsolete in the next 20 years. 20. Find the probability that at least one of the selected consumers believes that cash will be obsolete in the next 20 years. **In Exercises 21–24, assume that when human resource managers are randomly selected, 65% of them say that after submitting a résumé, job applicants should follow up within two weeks.** 21. If 10 human resource managers are randomly selected, find the probability that exactly 6 of them say job applicants should follow up within two weeks. 22. If 16 human resource managers are randomly selected, find the probability that exactly 12 of them say job applicants should follow up within two weeks. 23. If 20 human resource managers are randomly selected, find the probability that at least 18 of them say job applicants should follow up within two weeks. 24. If 14 human resource managers are randomly selected, find the probability that fewer than 3 of them say job applicants should follow up within two weeks. **In Exercises 25–28, find the probabilities and answer the questions.** 25. *Withers v. Georgia* In the classic legal case of Withers v. Georgia, a jury pool of 90 prospective jurors is to be randomly selected from a population in which 27% were minorities. Before the jury pool was selected, 7 were summoned. Is the result of getting 7 or fewer minorities out of 90 jury pools randomly selected from a population of 27% minorities significantly low? What does the result suggest about the jury selection process?
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