H0: Ud is greater than or equal to 0Ha: Ud is less than 0Decide whether to reject H0 or not. Explain in complete sentence. Find the confidence interval of the mean difference. Interpret the interval. A3 Analysis 1a - Christa Altamirano - JMP Proin File Edit Tables Rows Cols DOE Analyze Graph Tools View Window SAHelp4 Oneway Analysis of Sales By Sales Region440C19alntselli.eIIESales420-400380360340Missing Rows4t TestSW-NEAssuming unequal variancesDifferenceStd Err DifUpper CL DifLower CL DifConfidencee●WONENE-17.308 t Ratio7.941 DF-0.683 Prob> H-33.932 Prob > t0.95 Prob ProQAQADRows Cols DOE Analyze Graph Tools View WindoA▶19▪▪▪▪⠀⠀⠀Sales Region Sales40243539036536037138538634736436538135837737910 NE11 NE12 NE13 NE14 SW15 SW16 SW17 SW18 SW19 SW20 SW21 SW22 SW23 SW24 SW

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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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H0: Ud is greater than or equal to 0 Ha: Ud is less than 0 Decide whether to reject H0 or not. Explain in complete sentence. Find the confidence interval of the mean difference. Interpret the interval.

A3 Analysis 1a - Christa Altamirano - JMP Pro
in File Edit Tables Rows Cols DOE Analyze Graph Tools View Window SA
Help
4 Oneway Analysis of Sales By Sales Region
440
C
19
al
nts
elli.
e
II
E
Sales
420-
400
380
360
340
Missing Rows
4t Test
SW-NE
Assuming unequal variances
Difference
Std Err Dif
Upper CL Dif
Lower CL Dif
Confidence
e
●
WONE
NE
-17.308 t Ratio
7.941 DF
-0.683 Prob> H
-33.932 Prob > t
0.95 Prob<t
2
=
Sales Region
SW
-2.17946
18.94135
0.0421*
0.9789
0.0211* -20 -10 0
10
AF
+
20
=
Pr
80000

Pro
QAQAD
Rows Cols DOE Analyze Graph Tools View Windo
A
▶
19
▪▪▪▪⠀⠀⠀
Sales Region Sales
402
435
390
365
360
371
385
386
347
364
365
381
358
377
379
10 NE
11 NE
12 NE
13 NE
14 SW
15 SW
16 SW
17 SW
18 SW
19 SW
20 SW
21 SW
22 SW
23 SW
24 SW

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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