The amount of nicotine in a cigarette produced by a tobacco company is a random variablewith mean 2.2 mg and standard deviation 0.3 mg. Taking 100 randomly chosen cigarettes, let X; denotethe nicotine content of the ith cigarette for i = 1,..., 100, and let X = 100 Ei=1 X; be the sample meanof the nicotine content.100a. What is the variance of X?Var(X) =Approximate the probability that X is higher than 2.25 in terms of the standard normal randomvariable. (The answer is given in terms of 2.25, standardized by mean and standard deviation ofX.)P(X> 2.25) = P(Z >

Formula used: The standard deviations of sampling distribution is= Sd/ √n

Answered: The amount of nicotine in a cigarette…

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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