norol asia to(1) (Investing in College) Based on a USA Today poll, 10% of the population believes that college isno longer a good investment. Among 16 randomly selected people, 2 believe that college is no longera good investment.On hast(a) Assuming 10% rate, verify that this is a binomial experiment and identify the given data withbe correct symbols: x =, n =, and p=.(b) Assuming 10% rate of belief, find the probability that, in 16 people,(i) exactly four(ii) at least onebelieve that college is no longer a good investment(c) The poll results were obtained by Internet users logged on the USA Today web site and theInternet users decided whether to ignore the posted survey or respond. What type of sampleis this? What does it suggest about the validity of the result?

**(b) Probability Calculations****i) Probability of exactly four people believing college is not a…

Answered: norol asia to (1) (Investing in…

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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One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 55 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 55 minutes for the cable technician to arrive. The customer asks a simple random sample of 4 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 62.1 minutes with a standard deviation of 8.3 minutes. Assume that the population distribution is approximately normal. Test the customer’s claim at the 0.05 level of significance. Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places.
an automobile engineer claims that 1in 10 automobile accidents are due to driver fatigue . if a random sample of 5 accidents observed , then the probabilty that 3 accidentsare due to drive fatigue is
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