Suppose that the rats on the campus of Hypothetical U are found to be carriers of bubonic plague.Eradicating the rats has an estimated cost of $1,000,000 and is expected to reduce the probability agiven student dies of the plague from 1/3,000 to zero. Suppose that there are 30,000 students oncampus. Suppose further that the administration refuses to eradicate the rats due to the cost. Fromthis information, we can estimate that the administration's willingness to pay to save a studentstatistical life is no more than$100,000$1,000,000$50,000$33,333

solution: The cost of $1,000,000 saves option B is correct

Answered: Suppose that the rats on the campus of…

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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For the project above, suppose our rework loop was “longer.” That is, in the earlier question, we assumed that, after finishing A4 we have a 20% probability of going back to A3. Instead, assume that after completing A4, there is a 5% chance of having to redo A2 (and hence A3 and then A4), there is a 15% chance of having to redo A3 (and hence A4 as well). b) What is the probability of completing the project in 14 or fewer days? (Please enter the percentage of probability without the percentage sign)
4.
Question 24
Problem 2. (Exercise 6, Section 9.5.7) According to the Department of Motor Vehicles (DMV), the entity in charge of providing driving licenses in the United States, it is illegal to drive with a blood alcohol content of 0.08% or more if you are 21 or older. In the DMV's guidelines to determine when a person is driving under the influence, which can be found at https://www.dmv.ca.gov/portal/dmv/detail/pubs/hdbk/actions_drink, it is indicated that fewer than five percent of the population weighing 100 pounds will exceed the 0.33 alcohol level. Assume this is accurate. If the Highway Patrol stops in a random day 200 unrelated cars where the individual weighs one hundred pounds, on a Friday night, what is the probability that six percent of more individuals stopped exceeds that 0 33 alcohol level?
Working problem 4.12: If the event is a number '5' tuming in rolling a die, simulate rolling a die for 1000 times with increments of 100 and explain how the law of large numbers will prevail. Working problem 4.13 : The data in the Table below was taken from the U.S. Census Bureau report titled "HINC-01. Selected Characteristics of Households, by Total Money Income in 2005" (http://www.census.gov/hhes www/cpstables/032010/hhinc/new01 001.htm) Income Under $20,000 $20,000 to < $40.00O $40,000 to < $60.00O S60,000 to < $80,000 $80,000 to < $100,000 Above $100,000 Households (thousands) 24,559 26,904 20.026 14,535 9,362 7,813 If a U.S. family is selected at random, Determine (a) The probability that the family selected has an annual income of less than $40,000 (b) The probability that the family selected has an annual income of $40,000 to less than $80,000 (c) The probability that the family selected has an annual income of more than $100,000 29
Suppose that a new detection tool is introduced starting in week 3 and that from week 3 onwards, each fake bill has a 1 in 3 chance of being detected at each transaction. In this case, what is the totalexpected number of times that the fake bills are successfully used in transactions without being detected?
section 5.4 Drug usage in the workplace costs employers incredible amounts of money each year. Drug testing potential employees have become so prevalent that drug users are finding it extremely hard to find jobs. Drug tests, however, are not completely reliable. To decrease the likelihood of making an error, all potential employees are screened through two tests, which are independent. One test has a 96% accuracy and the other has a 97% accuracy. Step 1 of 2 : If a person were drug free, what is the probability they would fail both tests? Round your answer to four decimal places, if necessary.
Problem 14: Suppose that the checkout time at a grocery store is an exponential random variable with mean 4 minutes. Estimate the probability that a cheker will serve more than 77 customers during a 6 hour shift.
Rework problem 21 from section 4.1 of your text involving the deep-sea fisherman. Assume that the fisherman can use between 5 and 8 lines. With 5 lines, the probability of a catch on each line is 0.77. With 6 this probability is 0.66, with 7 it is 0.52, and with 8 the probability is 0.49. How many lines should the fisherman use to maximize the probability of catching at least 3 fish?
Suppose that a group of illegal counterfeiters print 1,000 copies of fake $20 bills and introduces them into the economy. Suppose that each bill is used once per week (starting in week 1), and that each time a bill is used, it has a 1 in 5 chance of being detected as fake. If it is detected, it is removed. If not, it is used again. Suppose now that instead of using a new detection tool starting in week 3, suppose we started using it right away at the beginning of week 1. If we wanted the total expected number of transactions with the 1,000 fake bills to be at most 1,700 then what percentage would we need to detect at each transaction? Write your final answer as a percentage, and round to 2 decimal points.
Chapter 07, Section 7.4, Problem 038c The amounts of electricity bills for all households in a city have a skewed probability distribution with a mean of $137 and a standard deviation of $30. Find the probability that the mean amount of electric bills for a random sample of 75-households selected from this city will be more than the population mean by at least $4. Round your answer to four decimal places. P (x greater than u by at least $4) = the tolerance is +/-2%
Please answer step d.

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