The following table shows the two-way ANOVA output for the weights of poplar tre

Question

The following table shows the two-way ANOVA output for the weights of poplar trees. Assuming no interaction between site and treatment, is there sufficient evidence to support the claim that site has an effect on weight? Source Site Treatment Interaction Error Total MS 0.341818 0.626666 0.339627 0.219114 DF 6 72 83 0.6836 1.8800 2.0378 15.7762 20.3776 1.56 2.86 1.55 0.217 0.043 0.175 Is there any evidence that site has an effect? (Assume a 0.05 significance level.) A. Since the P-value for site is large, there is no evidence to support the claim 0 B. Since the P-value for site is large, there is evidence to support the claim. ° C. Since the P-value for site is small, there is no evidence to support the claim. 0 D. Since the P-value for site is small, there is evidence to support the claim.

Explanation / Answer

The test is significant and the variable has an effect only when the p-value is low enough ( lower than the level of significance which is generally ) . Here we have the p-value as 0.217 for the Site which is high and therefore the test is not significant

Therefore since the p-value here is large, there is no evidence to support the claim

Therefore A is the correct answer here.

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