Depressed patients were randomly assigned to one of three groups: a placebo group, a group that...

We are now also interested if a patient's weight has an effect on the drug's effectiveness. Patients were categorized as either underweight, overweight, or 'medium weight'. These revised data are presented below. Use the Microsoft Excel "Anova Single-Factor" Data Analysis tool to conduct a 2-way ANOVA test for the data in the following table:

	Placebo	Moderate Dose	High Dose
underweight	42	22	13
underweight	52	19	14
medweight	41	31	12
medweight	41	21	19
overweight	39	8	10
overweight	33	23	0

Should this be a 2-way test WITH replication or WITHOUT replication?
What are the three Questions, in context, that we want our ANOVA to answer?
What are your three answers? Use the group and interaction confidence levels obtained by way of the Excel ANOVA output table's p-values. State your answers in terms of dose and weight.

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orchestra answered 10 months ago

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