A researcher investigated the effect of volume of background noise on participants€™ accuracy rates while performing a boring task. He tested three groups of randomly

(a) Complete the ANOVA
(b) At a = .05, what is Fcrit?
(c) Report the statistical results in the proper format.
(d) Perform the appropriate post hoc tests.
(e) What do you conclude about this study?

(f) Compute the effect size and interpret it.

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Low Volume Moderate Volume High Volume X61.5 1n 65.5 48.25 Source Sum of Squares df Mean Square F Between groups Within groups Total 652.16 612.75 1264.92