Decide if we reject H0 or not. Explain and us complete sentence. Find the confidence interval for mean difference. Interpret the interval (....dio41e9%Matched Pairs4 Difference: Posttest Weight-Pretest Weight40Difference: Posttest Weight-Pretest Weight30-20-10-O-10--20-30--40-Posttest Weight 147.5 t-RatioPretest WeightMean DifferenceStd Error100 120 140 160180 200 220Mean: (Posttest Weight+Pretest Weight)/2Upper 95%Lower 95%N& Spa ECorrelation161.167 DF-13.667 Prob> It4.97773 Probt-0.871 Prob Subjects Pretest Weight Posttest Weight1 Phil1801692 Marry1121043 Bill1451484 Jean1601435 Pat1581436 Tom212178

Answered: Decide if we reject H0 or not. Explain…

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

Decide if we reject H0 or not. Explain and us complete sentence. Find the confidence interval for mean difference. Interpret the interval

(....
dio
4
1e
9%
Matched Pairs
4 Difference: Posttest Weight-Pretest Weight
40
Difference: Posttest Weight-Pretest Weight
30-
20-
10-
O
-10-
-20
-30-
-40-
Posttest Weight 147.5 t-Ratio
Pretest Weight
Mean Difference
Std Error
100 120 140 160
180 200 220
Mean: (Posttest Weight+Pretest Weight)/2
Upper 95%
Lower 95%
N
& Spa E
Correlation
161.167 DF
-13.667 Prob> It
4.97773 Probt
-0.871 Prob <t
-26.462
6
0.94892
●
-2.74556
5
0.0405*
0.9797
0.0203*
▶
Q
ord
SAD
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Ra
All re
Selec
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Label
P

Subjects Pretest Weight Posttest Weight
1 Phil
180
169
2 Marry
112
104
3 Bill
145
148
4 Jean
160
143
5 Pat
158
143
6 Tom
212
178

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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