STATISTICAL TECHNIQUES AND TOOLS
ANALYSIS OF VARIANCE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fail to reject the null hypothesis
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Reject the null hypothesis
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The null hypothesis are equal
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None of the above
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Detailed explanation-1: -When you have found the F value, you can compare it with an f critical value in the table. If your observed value of F is larger than the value in the F table, then you can reject the null hypothesis with 95 percent confidence that the variance between your two populations isn’t due to random chance.
Detailed explanation-2: -If the f-table value is smaller than the calculated value, you can reject the null hypothesis.
Detailed explanation-3: -You should also reject the null if your critical f value is smaller than your F Value, you should also reject the null hypothesis. The F value should always be used along with the p value in deciding whether your results are significant enough to reject the null hypothesis.
Detailed explanation-4: -Compare the test statistic to the critical value. If the test statistic is more extreme in the direction of the alternative than the critical value, reject the null hypothesis in favor of the alternative hypothesis. If the test statistic is less extreme than the critical value, do not reject the null hypothesis.