0.73310.18410.81590.2669 ED2. A manufacturing process that produces electron tubes is known to have a 10%defective rate. Suppose arandom sample of 15 tubes is selected from the manufacturing process.a) Find the probability that no more than two defectives are found?0.73310.18410.8159RTGBH✡M(32)77°F ^ctrlFeedback9:47 PM7/14/2022B

(a) Obtain the probability that no more than two defectives are found. The probability that no…

Answered: 2. A manufacturing process that…

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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Samuel F.B. Morse (1791 – 1872), the creator of Morse Code, claimed that 12% of all letters used in the English language were “e”s. Suppose random samples of 196 letters are selected from a book What is the probability that a random sample of 196 letters will contain less than 15% "e"s? Type your calculated z-score here. Express its value to the nearest hundredth (two decimal places). Type your probability here. Express its value to four decimal places. Do not round.
6) About 17% of employed adults in the United States held multiple jobs (a) A random sample of 45 employed adults is chosen. Is it appropriate to use the normal approximation to find the probability that less than 6.9 % of the individuals in the sample hold multiple jobs? If so, find the probability. If not, explain why not. the semp (b)A new sample of 115 employed adults is chosen. Find the probability that less than 6.9 % of the individuals in this sample hold multiple jobs. points
A normal population has a mean μ=47 and standard deviation σ=3 . Round answers up to four decimal places. a) The proportion of the population that is between 44 and 50 is ["", "", "", ""] . b) The probability that a randomly chosen value is greater than 55 is ["", "", "", ""]
6. In the manufacturer of commercial carpet small faults occur at random in the carpet at an average rate of 1 per 20 m2, Determine the probability that there are no faults in a randomly selected 40 m2 area of the carpet.
2 a, 2b, and 2c
2. Assume that a retail store has customers whose ages are normally distributed such that mu = 37.5 years and sigma 7.6 years. Calculate the probability that a randomly chosen customer is more than 48 years old.
Suppose 'W' is the width of all toilet seat covers used by all hotels in Paris. Suppose W is normally distributed with μ=15 and σ=9. A random sample of 36 covers is drawn from this population. What is the probability that the sample average width is more than 14 cm?
47.
63) A study of the amount of time it takes a mechanic to rebuild the transmission for a 2010 Chevrolet Coloradoshows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If 40 mechanics are randomlyselected, find the probability that their mean rebuild time is less than 8.9 hours.A) 0.9608 B) 0.9756 C) 0.9589 D) 0.4276
From the urn of Problem 1, ten balls are selected with replacement. Color Red Blue Green BrownNumber 4 3 2 1◼ 3.1. Estimate the probability that four or less red balls are selected.◼ 3.2. Estimate the probability that more than four blue balls are selected.
3.32 Arachnophobia: A 2005 Gallup Poll found that 7% of teenagers (ages 13 to 17) suffer from arachnophobia and are extremely afraid of spiders. At a summer camp there are 10 teenagers sleeping in each tent. Assume that these 10 teenagers are independent of each other. a) Calculate the probability that at least one of them suffers from arachnophobia. Round your answer to 4 decimal places. b) Calculate the probability that exactly 2 of them suffer from arachnophobia? Round your answer to 4 decimal places. c) Calculate the probability that at most 1 of them suffers from arachnophobia? Round your answer to 4 decimal places.
Question 6: If the random variable X has a normal distribution with mean 40 and std. dev. 5, calculate the following probabilities. Р(X > 43), P(X 23).

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2. A manufacturing process that produces electron tubes is known to have a 10% defective rate. Suppose a random sample of 15 tubes is selected from the manufacturing process. a) Find the probability that no more than two defectives are found? 0.7331 0.1841 0.8159