(a) Enter the expected frequencies below: X Y A B (b) What is the chi-square test-statistic for this data? Test Statistic: x² = Z (c) What is the critical value for this test of independence when using a significance level of a = 0.025? Critical Value: x² = =

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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You are conducting a test of the claim that the row variable and the
column variable are dependent in the following contingency table.
X
Y Z
A 42
22 5
B 41 31 15
Give all answers rounded to 3 places after the decimal point, if necessary.
(a) Enter the expected frequencies below:
X
Y
A
B
Z
(b) What is the chi-square test-statistic for this data?
Test Statistic: x²
(c) What is the critical value for this test of independence when using a
significance level of a = 0.025?
Critical Value: x²
=
(d) What is the correct conclusion of this hypothesis test at the 0.025
significance level?
O There is sufficient evidence to support the claim that the row and
column variables are dependent.
O There is not sufficient evidence to support the claim that the row
and column variables are dependent.
O There is not sufficient evidence to warrant rejection of the claim
that the row and column variables are dependent.
O There is sufficient evidence to warrant rejection of the claim that
the row and column variables are dependent.
Remember to give all answers rounded to 3 places after the decimal
point, if necessary.
Transcribed Image Text:You are conducting a test of the claim that the row variable and the column variable are dependent in the following contingency table. X Y Z A 42 22 5 B 41 31 15 Give all answers rounded to 3 places after the decimal point, if necessary. (a) Enter the expected frequencies below: X Y A B Z (b) What is the chi-square test-statistic for this data? Test Statistic: x² (c) What is the critical value for this test of independence when using a significance level of a = 0.025? Critical Value: x² = (d) What is the correct conclusion of this hypothesis test at the 0.025 significance level? O There is sufficient evidence to support the claim that the row and column variables are dependent. O There is not sufficient evidence to support the claim that the row and column variables are dependent. O There is not sufficient evidence to warrant rejection of the claim that the row and column variables are dependent. O There is sufficient evidence to warrant rejection of the claim that the row and column variables are dependent. Remember to give all answers rounded to 3 places after the decimal point, if necessary.
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