Coin toss. A fair coin is tossed n=80 times. Let p̂ be the sample proportion of heads (Peruvian suns). Find P(0.44 < p̂ < 0.61). Defective tools. It has been found that 2% of the tools produced by a certain machine have some defect. What is the probability that out of 400 such tools, a. 3% or more have some defect? b. 2% or fewer have some defect?
Coin toss. A fair coin is tossed n=80 times. Let p̂ be the sample proportion of heads (Peruvian suns). Find P(0.44 < p̂ < 0.61). Defective tools. It has been found that 2% of the tools produced by a certain machine have some defect. What is the probability that out of 400 such tools, a. 3% or more have some defect? b. 2% or fewer have some defect?
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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Question
-
Coin toss. A fair coin is tossed n=80 times. Let p̂ be the sample proportion of heads (Peruvian suns). Find P(0.44 < p̂ < 0.61).
-
Defective tools. It has been found that 2% of the tools produced by a certain machine have some defect. What is the
probability that out of 400 such tools,
a. 3% or more have some defect?
b. 2% or fewer have some defect?
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