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
Add Answer to:
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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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...
Perform a chi-square independence test using the critical value approach, provided the conditions for using the test are met. Be sure to state the hypotheses and the significance level, to obtain the expected frequencies, to obtain the critical value, to compute the value of the test statistic, and to state your conclusion. 160 students who were majoring in either math or English were asked a test question, and the researcher recorded whether they answered the question correctly. The sample results...
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