Suppose p denotes the probability of observing tails when an unfair coin is tossed once. Jack flipped the coin in order to estimate this probability and based on hisflips, he found a 90% confidence interval for p to be (0.15,0.25). How many times did Jack toss the coin to construct this interval?O 36O 6O 174O 106O 96

formula for the sample size needed to estimate a population proportion is

Answered: Suppose p denotes the probability 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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): A company that manufactures drip irrigation pipes. The mean life is 800 hours (= 800 hrs o = 60). Find the probability of a random sample (16 = n) if the arithmetic mean lies: between 785 and 815 hours and 130 hours
You are an accountant who is performing the annual audit at Hokem, Billem, and Soakem, a large telephone company. From past experience, it is known that 8% of the accounts at Hokem, Bilem, and Soakem has errors. a) what is the probability that the first account with an error is among the first 5 accounts that you check?
Suppose a math class contains 33 students. There are 23 females (five of whom speak Spanish) and 10 males (two of whom speak Spanish). Give all answers as decimals to at least two decimal places.1. What is the probability that a randomly selected student speaks Spanish, given that the student is female? 2. What is the probability that a randomly selected student does not speak Spanish, given that the student is male?
A coin which has probability p of coming up Heads is tossed three times. Let X be the number of Heads observed. What is ℙ(?=1)?
Which of the following are criteria for a binomial probability experiment? Select all that apply. O A. There are two mutually exclusive outcomes, success or failure. B. The trials are independent. O C. The experiment is performed a fixed number of times. O D. The probability of success is different for each trial of the experiment. O E. The probability of success is the same for each trial of the experiment. O F. The experiment is performed until a desired number of successes is reached. O G. Each trial depends on the previous trial. O H. There are three mutually exclusive outcomes, arriving on-time, arriving early, and arriving late.
Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Pre-Employment Drug Screening Results Positive test result Negative test result Drug Use Is Indicated Drug Use Is Not Indicated Subject Uses Drugs 42 11 Subject Is Not a Drug User 2 29 The probability of a false positive test result is (Round to three decimal places as needed.) Who would suffer from a false positive result? Why? O A. The person tested would suffer because he or she would be suspected of using drugs when in reality he or she does not use drugs. B. The employer would suffer because the person tested would not be suspected of using drugs when in reality he or she does use drugs. C. The person tested would suffer because he or she would not be suspected of using drugs when in reality he or she does use drugs. D. The employer would suffer…
The probability that a student in the probability and statistics course will make a marking error on a question on a multiple-choice test is 0.1. If there are ten questions and these are marked independently, the probability that no errors are commented is:
Based on a survey, when 1009 consumers were asked if they are comfortable with drones delivering their purchases, 42% said yes. The probability of randomly selecting 30 of the 1009 consumers and getting exactly 24 who are comfortable with the drones is represented as 0+. What does 0+ indicate? Does 0 + indicate that it is impossible to get exactly 24 consumers who are comfortable with drones? Choose the correct answer below. O A. The probability 0+ indicates that the probability is a very small positive value. It indicates that the event is likely. O B. The probability 0+ indicates that the probability is a very small positive value. It indicates that the event is impossible. O C. The probability 0+ indicates that the probability is zero. It indicates that the event is impossible. O D. The probability 0+ indicates that the probability is a very small positive value. It indicates that the event is possible, but very unlikely. Click to select your answer. 41.405 esc Q Search se #
The amount of time it takes for a student to complete a statistics quiz is uniformly distributed between 27 and 56 minutes. One student is selected at random. Find the probability of the following events. A. The student requires more than 52 minutes to complete the quiz. = B. The student completes the quiz in a time between 32 and 37 minutes. = C. The student completes the quiz in exactly 44.17 minutes. =
The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a standard deviation of 5.5 ounces. 35 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N b. What is the distribution of ? T - N( c. What is the probability that one randomly selected person drinks between 15.7 and 16.1 ounces of coffee per day?
A survey based Q…
A coin is chosen at random and tossed. The result is a head. What is the probability that the opposite face is a tail? Among the three coins, one has heads on both the faces, the second has tails For families with school age children, let the probability that a mother will attend a given PTA (Parent-teacher association) meeting is 0.7, the probability that a father will attend is 0.5 and the probability that (0S=s both will attend is 0.3. what is the probability that (i) at least one of the parents, eni (ii) exactly one of the parents, (iii) at most one of the parents, and (iv) none of the parents (a) 2.0 slq orit roto2 () 185 ad ot (d) ogbud latigeo orfT 000,012 will attend the meeting? Isioi Wan no nega tnuon onin (b) Atoth the faces, and the third has a head on one face and a tail on the other. on bein is chosen at random and tossed. The result is a head. What is the a

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