A pharmaceutical research company is studying a new non-addictive sleep medication. Participants who suffered from insomnia for over a year were randomly assigned to one of three groups. Group 1 is given a placebo, Group 2 is given 10 mg of the medication, and Group 3 is given 20 mg of the medication. The scores below represent the nightly average number of hours that the participants slept for a one-week period of time during the study. Conduct a one-way ANOVA using an α = .01. If appropriate, follow up with a measure of effect size and Tukey's HSD.

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The Answer of A pharmaceutical research company is studying a new non-addictive sleep medication. Participants who suffered from insomnia for over a year were randomly assigned to one of three groups. Group 1 is given a placebo, Group 2 is given 10 mg of the medication, and Group 3 is given 20 mg of the medication. The scores below represent the nightly average number of hours that the participants slept for a one-week period of time during the study. Conduct a one-way ANOVA using an α = .01. If appropriate, follow up with a measure of effect size and Tukey's HSD.

A Pharmaceutical Research Company Is Studying a New Non-Addictive Sleep