5. Suppose 7% of all households have no home telephone but dependcompletely on cell phones. Find the probability that in a random sample of450 households, between 25 and 35 will have no home telephone. You mayassume that the normal distribution applies. 2. A random sample of size 1,100 is taken from a population in which theproportion with the characteristic of interest is p = 0.28. Find the indicatedprobabilities.a. P(0.27≤ ≤0.29)P(0.27

5)Givenp=0.07n=450x~Binomial(n=450,p=0.07)P(X=x)=(nx)(p)x(1-p)n-x ; x=0,1,..,n

Answered: 5. Suppose 7% of all households have no…

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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8. An HP laser printer is advertised to print text documents at a speed of 18 ppm (pages per minute). The manufacturer tells you that the printing speed is actually a Normal random variable with a mean of 17.57 ppm and a standard deviation of 3 ppm. A Brother brand printer can print an average of 17.21 ppm and a standard deviation of 4 pages and its printer speed is also normally distributed. You select 10 of each printer at random. What is the probability that mean Brother print speed is at least 2 pages faster than the mean HP print speed?
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5. Suppose 7% of all households have no home telephone but depend completely on cell phones. Find the probability that in a random sample of 450 households, between 25 and 35 will have no home telephone. You may assume that the normal distribution applies.