Answered: What is Ha?

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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Related questions

Question

What is H_a? (H₀ is the mean VIQ scores for the younger, middle-aged, and older subjects are all not different from each other) (Note: 1= 5-25 Years, 2= 26-59 Years, 3= 60-92 Years)

Multiple Choices:

1. H₀ is not true

2. The mean VIQ scores for the younger, middle-aged, and older subjects 3. are all different

4. The mean VIQ scores for the younger, middle-aged, and older subjects are all different from each other

5. The mean VIQ scores for the younger, middle-aged, and older subjects are not equal to one another

6. The mean VIQ scores for the younger, middle-aged, and older subjects are not the same as each other

Descriptives
WAIS-R verbal IQ
95% Confidence Interval for
Mean
Mean
Std. Deviation
Std. Error
Lower Bound
Upper Bound
Minimum
Maximum
1
185
105.66
11.896
.875
103.94
107.39
81
138
380
107.99
12.935
.664
106.69
109.30
67
150
3
185
113.45
11.933
.877
111.72
115.18
78
146
Total
750
108.77
12.748
.465
107.85
109.68
67
150
ANOVA
WAIS-R verbal IQ
Sum of
Squares
df
Mean Square
F
Sig.
Between Groups
6072.641
2
3036.321
19.612
<.001
Within Groups
115648.057
747
154.817
Total
121720.699
749
2.

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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