Test the indicated claim about the standard deviations or variances of two populations. Subjects are given a creativity exercise on a computer with either a red background or a blue background. The scores are shown in the table. At the 0.01 significance level, test the claim that those tested with red background have creativity scores with a standard deviation equal to the standard deviation for those tested with a blue background. Red Blue Background n1 = 32 I1 = 19.5 Background n2 = 35 I2 = 19.6 %3D %3D %3D S1 = 1.38 S2 = 1.71
Test the indicated claim about the standard deviations or variances of two populations. Subjects are given a creativity exercise on a computer with either a red background or a blue background. The scores are shown in the table. At the 0.01 significance level, test the claim that those tested with red background have creativity scores with a standard deviation equal to the standard deviation for those tested with a blue background. Red Blue Background n1 = 32 I1 = 19.5 Background n2 = 35 I2 = 19.6 %3D %3D %3D S1 = 1.38 S2 = 1.71
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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
Transcribed Image Text:Does color enhance creativity?
Test the indicated claim about the
standard deviations or variances of
two populations. Subjects are given a
creativity exercise on a computer
with either a red background or a
blue background. The scores are
shown in the table. At the 0.01
significance level, test the claim that
those tested with red background
have creativity scores with a standard
deviation equal to the standard
deviation for those tested with a blue
background.
Red
Blue
Background
n2 = 35
I2 = 19.6
S2 = 1.71
Background
n1 = 32
I = 19.5
S1 = 1.38
What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.)
Họ: Select an answer v
Select an answer v
H1: [Select an answer v
? v|Select an answer v
Original Claim = Select an answer v

Transcribed Image Text:Based on the hypotheses, find the following:
Enter the critical values, along with the significance level and degrees of freedom x(a, df num, df den)
below the graph. (Graph is for illustration only. No need to shade.)
X²- Distribution
0.12
0.1
0.08
0.06
0.04
0.02
Test Statistic =
(Round to three decimal places.)
p-value =
(Round to four decimal places.)
Decision: Select an answer
Conclusion: Select an answer
|the claim that those tested with red
background have creativity scores with a standard deviation equal to the standard deviation for those
tested with a blue background.
Probability
LE
43
55
61
60T
115
121
127
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