03:41 MSubject TestNote: -You are attempting question 1 out of 1Question 46:A survey is conducted about 15% of the peoples have hearing trouble in Texaof 111 people, what is the probability that at most 9% have hearing trouble.0.03830.12540.25870.4578AnswerO AВODSubmitII

Given : A survey is conducted about 15% of the people have hearing trouble in Texa . Proportion (p)…

Answered: A survey is conducted about 15% of the…

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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4) Smith is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds that for the afternoon shift 5% of all welds done will be substandard. If Smith checks 300 welds completed during that shift, what is the probability that he will find less than 20 substandard welds? A) 0.4066 C) 0.0934 B) 0.5934 D) 0.9066 5) The National Association of Realtors estimates that 23% of all homes purchased in 2004 were considered investment properties. If a sample of 800 homes sold in 2004 is obtained what is the probability that at most 200 homes are going to be used as investment property? A) 0.5935 C) 0.0934 B) 0.4066 D) 0.9099
a.) The probability that the sample mean weight of this sample of 20 is greater than 9.75 is _____? b.) The probability that the sample mean weight of this sample of 20 is between 9.75 and 9.89 is ____? c.) There is only a 5% chance that the average weight of a sample of these 20 cheese wedges will be below _____ (answer the blanks)
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Across the United States, a staggering 72% of people are either overweight or obese. If 86 people are randomly selected, find the probability that ... (Round the answers to 4 decimal places.) a) ... exactly 58 are either overweight or obese: Incorrect0.0595 b) ... at most 63 of them are either overweight or obese: c) ... at least 66 of them are either overweight or obese:
Of all the weld failures in a certain assembly, 80% of them occur in the weld metal itself, and the remaining 20% occur in the base metal. A sample of 20 weld failures is examined. a) What is the probability that exactly five of them are base metal failures? b) What is the probability that fewer than four of them are base metal failures? c) Find the mean number of base metal failures. Round the answer to one decimal place. d) Find the standard deviation of the number of base metal failures.
10) In a particular class (in another department) the statistics of scores on two midterms and one final revealed the following facts: a) The probability to pass the final is 1/2 b) The probability to pass the final – given that both midterms were passed– is 3/4/. c) The probability to pass the final – given that at least one of the midterms was flunked– is 1/4..d) Passing the first and second midterm are independent events with equal probability. Based on the above information, compute the probability of passing the first midterm.
The table below shows the number of survey subjects who have received and not received a speeding ticket in the last year, and the color of their car. Find the probability that a randomly selected person: Speeding tcket No speeding Bcket Red car 15 135 Notred ca 45 470 fotal ts a) has a speeding ticket given they have a red car b) has a red car given they have a speeding ticket 8 88
Assume this year's flu vaccine has a 65% chance of being effective. If the vaccine is given to 314 randomly selected people, answer the following.d) What is the probability that exactly 200 of them did not get the flu? g) What is the probability that exactly 204 of them did not get the flu? Round final answer to 4 decimal places. h) What is the probability that at least 204 of them did not get the flu? Round final answer to 4 decimal places. i) What is the probability that at most 204 of them did not get the flu Round final answer to 4 decimal places.
Check my work and help with section d, please.
What is the probability of selecting a boy who is 5, 6, or 7 years old? (Table attached) A) 24.8% B) 51.3% C) 32.1% D) 16.9%
An unreliable company produces a large shipment of blenders where 13% have a defective motor, and 25% have a defective electrical cord and 5% have both defects. If you randomly select a blender in this shipment, find the probability that it has... a) only a defective electrical cord. Write your answer as a percent rounded to 1 decimal place. b) a good motor. Write your answer as a percent rounded to 1 decimal place. c) a good motor and a good electrical cord. Write your answer as a percent rounded to 1 decimal place.
In a sample of college students, 100 live on campus, 60 live with family off campus, and 40 live in an apartment off campus. A.What is the probability a randomly selected student lives off campus? B. Explain why this is an example of empirical probability.

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A survey is conducted about 15% of the peoples have hearing trouble in Texa of 111 people, what is the probability that at most 9% have hearing trouble. a) b) c) d) 0.0383 0.1254 0.2587 0.4578