Posted by Stuart on Sunday, March 8, 2009 at 8:46pm.
Need help with these questions: I have already answered 27 out of the 30 accept these last three:
8. Given the significance level 0.01, the F-value for the degrees of freedom, d.f. = (7,3) is.
9. One-way ANOVA is performed on three independent samples with: n1 = 6, n2 = 7 , and n3 = 8. The critical value obtained from the F-table for this test at the 2.5% level of significance equals:
10. A randomized block design ANOVA has five treatments and four blocks. The computed test statistic (value of F) is 4.35. With a 0.05 significance level, the appropriate table value and conclusion will be:
A) 14.37: accept the null hypothesis
B) 3.11: accept the null hypothesis
C) 3.26: accept the null hypothesis
D) 3.26: reject the null hypothesis
- Statistics - MathGuru, Sunday, March 8, 2009 at 9:58pm
All of these questions require you to read the F-distribution table for the values stated. I'll give you a few hints and see if you can take it from there.
It's either A or B. Read the table using the degrees of freedom and significance level as guidelines.
Degrees of freedom is 2, 18 (for a one-way Anova). Check the table.
If the test statistic exceeds the critical value, reject the null. If the test statistic does not exceed the critical value, then do not reject the null.
I hope this will help get you started.
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