is a p-value in test of independence (using chi-test) could be zero? is that valid? if...
is a p-value in test of independence (using chi-test) could be zero? is that valid? if yes, what does it means?
Homework Answers
Sol:
Ho:2 attributes are independent
Ha:2 attributes are dependent
Yes its valid for p to be zero
if p=0.00
let alpha=0.05
here p<0.05
means reject null hypothesis and
Accept alternative hypothesis and conclude that
The two attributes are dependent
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is a p-value in test of independence (using chi-test)
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Next we will use StatCrunch to calculate the expected
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Does the data meet the conditions for the chi-square test?
StatCrunch Instructions: Test of Independence Using
Technology
Next we will use StatCrunch to calculate the expected
counts:
Enter Yes and No in column var1.
Enter the observed counts as they appear in the table above
(not including the totals) into columns var2 and var3.
Rename: var1 as "911", var2 as "No Risk" and var3 as "M to S
Risk"
Choose Stat -> Tables -> Contingency -> with
summary
Select the...
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