A population of values has a normal distribution with μ = 145.1 and σ = 60.3. You intend to draw a random sample of size n = 128. Please show your answers as numbers accurate to 4 decimal places. Find the probability that a single randomly selected value is between 129.6 and 139.2. P(129.6 X 139.2) = Find the probability that a sample of size n = 128 is randomly selected with a mean between 129.6 and 139.2. P(129.6139.2) =
A population of values has a normal distribution with μ = 145.1 and σ = 60.3. You intend to draw a random sample of size n = 128. Please show your answers as numbers accurate to 4 decimal places. Find the probability that a single randomly selected value is between 129.6 and 139.2. P(129.6 X 139.2) = Find the probability that a sample of size n = 128 is randomly selected with a mean between 129.6 and 139.2. P(129.6139.2) =
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.2:-
according to central limit theorem if sample size is large enough i.e. greater than 30 then sampling distribution of mean is approximately normally distributed with mean equal to population mean μ and standard error σ /√n.
So
Mean = = 6.3
Standard deviation= 83.3/√55
11.2322
On rounding11.23
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