(D) If the population has a bell-shape distribution, what proportion of observations are smaller than 1,700?
(D) If the population has a bell-shape distribution, what proportion of observations are smaller than 1,700?
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
Answer for question D
Transcribed Image Text:11. A population has a mean of 2,300 and a standard deviation of 300.
(A) If we assume that the population has an unknown shape, find the minimum proportion of observations
in the population that are in the range 1,400 to 3,200.
(B) If the population has a bell-shape distribution, what proportion of observations are greater than 2,600?
(C) If we assume that the population has an unknown shape, determine the maximum proportion of the
observations that are below 1,700.
(D) If the population has a bell-shape distribution, what proportion of observations are smaller than 1,700?
Expert Solution
Step 1
We have given that,
Let X be a random variable from bell-shape distribution (Normal distribution) with mean (Mu) = 2300 and standard deviation (sigma) = 300
Then,
(D) We will find the proportion of observations are smaller than 1700= ?
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