Answered: A binomial random experiment is…

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 poll found that 35% of adults do not work at all while on summer vacation. In a random sample of 7 adults, let x represent the number who do not work during summer vacation. Complete parts a through e. C a. For this experiment, define the event that represents a "success." Choose the correct answer below. Adults working during summer vacation Adults not working during summer vacation b. Explain why x is (approximately) a binomial random variable. Choose the correct answer below. O A. There are three possible outcomes on each trial. OB. The experiment consists of only identical trials. OC. The trials are not independent. D. The experiment consists of identical trials, there are only two possible outcomes on each trial (works or does not work), and the trials are independent. c. Give the value of p for this binomial experiment. p= 0.35 d. Find P(x= 3). P(x= 3) = (Round to four decimal places as needed.)
A Food Marketing Institute found that 25% of households spend more than $125 a week on groceries. Assume the population proportion is 0.25 and a simple random sample of 225 households is selected from the population. What is the probability that the sample proportion of households spending more than $125 a week is less than 0.28? Answer = (Enter your answer as a number accurate to 4 decimal places.) Submit Question
A sample of n=64 observation (independently drawn) is selected from a population with mean 20 and s.d.16. What is the probability that the sample mean is less than 15.5?
For a random sample of 300 bears, what is the probability of obtaining a sample mean less than 680 pounds? Round to 4 digits beyond the decimal point. (image for reference)
Consider a binomial distribution for 4 trials and a probability of success of 0.16 on each trial. What is the standard deviation of the distribution? (Give your answer in 2 d.p)
4 students apply to a PhD program. The program rejects 45% of all applicants. Students are accepted and rejected independently of each other. Let the random variable X represent the number out of the 4 students who get rejected into the PhD Program. (Hint: Binomial distribution with n=4, P=45%) What is the mean of the random variable? (round your answer to 4 decimal places)
Statistics Question
Based on historical data, your manager believes that 36% of the company's orders come from first-time customers. A random sample of 74 orders will be used to estimate the proportion of first-time-customers What is the probability that the sample proportion is between 0.26 and 0.47? (Enter your answer as a number accurate to 4 decimal places.) Submit Question
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help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working
Amey Lndet Outlo X Classwork for Reed Girls PE 7 X ASSESSMENT IN PROGRESS &https://www.summitlearning.org/my/assessment takes/63261905/a/7 Probability & Sampling:Question 7 Ben wants to try a new restaurant for dinner. His online search resulted in 7 new 3-star restaurants, 5 new 4-star restaurants, and 3 new 5-star restaurants. If he were to choose a restaurant at random, what is the probability that he chooses a 5-star restaurant? Select one: 47% O 33% 20% 3%
1 A sample size of 30 is taken from a population which is normally distributed with a mean of 60 and standard deviation of 4.Find the probability of the sample mean less than 59 Type your answer... 2

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A binomial random experiment is conducted where p = 0.8. What is the probability of failure in any one trial? 0.16 0.2 0.4 0.8