If we assume that the above proportion is still true in 2021, how likely is it to find a random sample of n exceeding 11% ? 125 individuals that results in a sample proportion %3D
If we assume that the above proportion is still true in 2021, how likely is it to find a random sample of n exceeding 11% ? 125 individuals that results in a sample proportion %3D
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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Transcribed Image Text:The prevalence of cannabis use among Canadians 15 years of age and older was 9.1% in
2011(according to Statistics Canada).
уears
If we were to sample n = 125 individuals, what would be the approximate
The mean is calculated as:
distribution of the sample proportion îp ? give the mean, the standard deviation and
the name of the approximate distribution of such sample proportion as well as the
name of the theorem used to justify your claims
H=n•p=125 - 0.091 = 11.375
%3D
The variance is calculated as:
o² = n·p· (1 – p) = 125 - 0.091 · 0.909 = 10.3399
%3|
The standard deviation is calculated as:
= yn•p·(1 – p)
= V10.3399 = 3.2156
%3D
If we assume that the above proportion is still true in 2021, how likely is it
to find a random sample of n =
125 individuals that results in a sample proportion
exceeding 11% ?
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