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Researchers wanted to test the efficacy of 6 different insect sprays in agricultural land. To this...

Researchers wanted to test the efficacy of 6 different insect sprays in agricultural land. To this end, 72 plots are available for the study. Each spray is randomly spread on 12 plots. After some time, they count the number of insects found in each plot.

a. [3] We run an ANOVA test (see table below). What can you conclude? Be specific (give the hypotheses).

            Df Sum Sq Mean Sq F value Pr(>F)
spray 5 2669 533.8 34.7 <2e-16 ***
Residuals 66 1015 15.4
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Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Math   Statistics-And-Probability   
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