e. Find the probability that less than 3 of the observed trucks are speeding.(4) Consumer Reports rated airlines and found that 85% of the flights involved in the study arrived on time(that is, within 15 minutes of the scheduled arrival time). Consider a random sample of 200 flights.a. What is the probability that 175 flights will arrive on time?b. What is the expected number that will arrive on time?c. What does this value mean in the context of the problem?(5) The following information will also be used in the related discussion forum for this portion of the module.A realistic estimate for the probability of an engine failure on a transatlantic flight is 1/14000. Use thisprobability and the binomial probability formula or your calculator to find the probabilities of 0, 1, 2, and 3engine failures for a three engine jet and the probabilities of 0, 1, and 2 engine failures for a two-engine jet.Carry all numbers to as many decimal places as your calculator will display. (You should have sevenanswers to this question when complete.)er l6-eSter 5-er l6-22ider 10-17der 1-30NEW HCONNECT WSCAN OR TEXT YOUR NA(336) 682-61SO WE CAN KNOW YOU'RE HREATERHINGS0S:1 NHOC

( 4 ) Given that n =200 ,p=0.85

Answered: (4) Consumer Reports rated airlines and…

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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The proportion of items in a population that possess a specific attribute is known to be 0.30. a. If a simple random sample of size n = 100 is selected and the proportion of items in the sample that contain the attribute of interest is 0.35, what is the sampling error? b. Referring to part a, what is the probability that a sample of size 100 would have a sample proportion of 0.35 or less if the population proportion is 0.30? a. The sampling error is. (Type an integer or a decimal.)
The ages of students in a middle school have the following probability distribution: x 12 13 14 15 P(x) 0.25 0.29 0.32 0.14 a) What is the probability a student chosen at random is no less than 13 years old? b) What is the mean age of the students in middle school? c) What is the standard deviation for the ages of the students in the middle school?
question h and expected number
The U.S. Health Department reported that 40% of households had both a wireless phone and a landline. Assume that in a simple random sample of 300 households, 105 are found to have both services. With this information answer the following questions: What is the population proportion, π? What is the sample proportion, p? What is the standard error of the sample proportion? In the sampling distribution of the proportion, what is the probability that a sample of this size would result in a sample proportion at least 35%?
c. What is the z-score/how many standard errors away is an average of 12 hours for a sample of size 81? What is the probability that it would take on average over 12 hours for the 81 taxpayers to finish their form 1040? Would you find this unusual? O yes no d. What is the z-score/how many standard errors away is an average of 12 hours for a sample of size 100? What is the probability that it would take on average over 12 hours for the 100 taxpayers to finish their form 1040? Would you find this unusual? no O yes e. What is the z-score/how many standard deviations away is 12 hours for one tax-payer? What is the probability that it would take one person over 12 hours to finish their form 1040? Would you find this unusual? yes
What are the reasoning or arguments surrounding the below statement: "Statistical research shows that the probability of a person who takes one alcoholic drink are at a greater risk of getting into a car accident than someone who recently smoked marijuana
3. Assume that 12% of people are left-handed. You are trying to find 3 left-handed individuals to interview for an article. Assuming that everyone you approach is willing to be interviewed ... a) what is the probability that you need to approach exactly 6 people to find 3 left-handed individuals? b) what is the probability that you need to approach 6 or more people to find 3 left-handed individuals? c) what is the expected value of the number of individuals that you will need to approach to find 3 left- handed individuals?
5. Five hundred tickets will be sold and these will be raffled during the town fiesta. One of these tickets will win ₱3000 and the rest will win nothing. What will be the expected outcome and variance of your gain if you will buy one of the tickets?6. Astrid tosses an unbiased coin. On each toss, she wins ₱50 if a head appears, and loses ₱40 if a tail appears. What will be the expected value and variance of her gain?
5.Approximately 64% of the people murdered actually knew their murderer. Given 63 current unsolved murders, what is the probability that at least (equal to and more than) 35 victims knew their murderer?
A. When rolling 10 dice, what is the probability of rolling 7 sixes? How does this compare to the probability of rolling 7 dice with five or higher? Explain the difference. B. With two dice, what is the chance of rolling snake eyes (double 1's)? what is the chance of rolling doubles of any kind?
7. 64% of all violent felons in the prison system are repeat offenders. If 40 violent felons are randomly selected, find the probability that a. Exactly 23 of them are repeat offenders. ?b. At most 28 of them are repeat offenders. ?c. At least 27 of them are repeat offenders. ?d. Between 23 and 30 (including 23 and 30) of them are repeat offenders. ?

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