Please solve within 30 minutes with a correct explanation. The first samplethe mean =12The variance = 16n1= 10The second sample Exifi = 280,>xifi = 1350%3D>. fi = 40i3D1i=1(I) Find standard deviation of the combined set of all observation(II) Which of the two samples is more homogeneous.

Standard deviation of combined series: SD=n1s12+n2s22n1+n2+n1*n2(x1-x2)2(n1-n2)2 i) Using Excel,

The first sample the mean =12 The variance = 16 %3D n1=10 The second sample E1xifi = 280, %3D > xf; = 1350 fi = 40 i=1 (I) Find standard deviation of the combined set of all observation (II) Which of the two samples is more homogeneous.

The first sample the mean =12 The variance = 16 %3D n1=10 The second sample E1xifi = 280, %3D > xf; = 1350 fi = 40 i=1 (I) Find standard deviation of the combined set of all observation (II) Which of the two samples is more homogeneous.

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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Please solve within 30 minutes with a correct explanation.

The first sample
the mean =12
The variance = 16
n1= 10
The second sample Exifi = 280,
>xifi = 1350
%3D
>. fi = 40
i3D1
i=1
(I) Find standard deviation of the combined set of all observation
(II) Which of the two samples is more homogeneous.

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