STATISTICAL TECHNIQUES AND TOOLS
ONE WAY ANOVA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The null hypothesis stating that all populations means are equal is most likely to be NOT REJECTED when the “within group variation” of the samples is ____ the “among group variation” of the samples.
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equals to
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larger than
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smaller than
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uncorrelated with
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Explanation:
Detailed explanation-1: -In a test of hypothesis, the null hypothesis is that the population mean is equal to 90 and the alternative hypothesis is that the population mean is not equal to 90.
Detailed explanation-2: -The null hypothesis for ANOVA assumes that not all of the population means being compared are equal. The total sum of squares (SST) measures the amount of variation between each data value and the grand mean.
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