Power companies severely trim trees growing near their lines to avoid power failures due to falling limbs in storms. Applying a chemical to slow the growth of thetrees is cheaper than trimming, but the chemical kills some of the trees. Suppose that one such chemical would kill 20% of sycamore trees. The power companytests the chemical on 250 sycamores. Consider these an SRS from the population of all sycamore trees. What is the probability that 24% or more of the trees inthe sample are killed?Step #3: Find the probability.O 0.0999O 0.9948O 0.500.9430O 0.0052O 0.0569

Given that n=250 , p=20%=0.20 , q=1-p=1-0.20=0.80 Mean=μ(p)=0.20 Standard deviation=σ(p)…

Answered: Power companies severely trim trees…

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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Question 9 Based on a poll, among adults who regret getting tattoos, 17% say that they were too young when they got their tattoos. Assume that 8 adults who regret getting tattoos are randomly selected, and find the indicated probability. 1. Find the probability that none of the selected adults say that they were too young to get tattoos 2. Find the probability that exactly one of the selected adults says that he or she was too young to get tattoos. 3. Find the probability that the number of selected adults saying they were too young is 0 or 1.
About 8 % if the U.S. population catches the flu each season. Assuming everyone has equal probably of catching the flu, about what are the odds of catching the flu in a given season?
Suppose that 20.56% of all vehicles on the road get a fuel economy of at least 35 miles per gallon (MPG). You conduct an observational study on a stretch of road outside of campus and record the make and model of 727 vehicles over a month long period. What is the probability that greater than 21.1% of the cars you observed get at least 35 MPG? (please show how to plug this into a scientific calculator) Question 4 options: 1) 0.3593 2) 0.5000 3) <0.0001 4) -23.9437 5) 0.6407
Question 3. Suppose there is a 24.50% chance each child will get influenza, whereas in 13.50% of two-child families both children get the disease. What is the probability that at least one child will get influenza? O a. 0.3550 O b.0.06 O c. 0.49 O d. 0.11
Show all your work and explain each step. A laboratory blood test is 0.95 effective in detecting Corona virus, when it is, in fact, present. However, the test also yields a "false positive" result for 1 percent of the healthy persons tested. (That is, if a healthy person is tested, then, with probability 0.01, the result will imply s/he has the Corona virus.) If 0.5 percent of the population in King County has the virus, what is the probability a person has the virus given that his or her test result is positive?
Question 6 Company records show that the proportion of defective parts has historically been 5%, however a quality control engineer believes that due to budget cuts these numbers have increased. To test this claim a random sample of N = 15 parts will be taken and if more than two defective parts are found the inspector will conclude that the proportion of defective parts has increases. Calculate the probability of the type one error. 18.5% 81.5% О 3.6% O 96.4%
QUESTION 2 It is known that 14.5% of adult men in the United States are 6 ft tall or taller. Assume that the heights of adult men in the United States are independent of each other. Suppose a random sample of 8 adult men in the United States is taken. What is the probability that 2 or 3 men in the sample are 6 ft tall or taller? O A. 0.208 OB. 0.308 OC. 0.408 O D. 0.508
Question 26 Renee buys a bag of cookies that contains 5 chocolate chip cookies, 7 peanut butter cookies, 5 sugar cookies, and 5 oatmeal cookies. What is the probability that Renee reaches in the bag and randomly selects a chocolate chip cookie from the bag, eats it, then reaches back in the bag and randomly selects a sugar cookie? Round your answer to four decimal places.

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