Question: (a) Write down the no-interaction two-way ANOVA model, and its assumptions (and constraints). (b) Write down the interaction two-way ANOVA model, and its assumptions (and

(a) Write down the no-interaction two-way ANOVA model, and its assumptions (and constraints). (b) Write down the interaction two-way ANOVA model, and its assumptions (and constraints). (c) Do you believe there is a significant effect from smoking cigarettes on sleep? Explain. (d) Do you believe there is a significant effect from smoking marijuana on sleep? Explain. (e) Do you believe there is an interaction effect between smoking cigarettes and smoking marijuana on sleep? Explain. 7. Continue with problem 6. (a) How many values of y are necessary to estimate? (b) How many values of d, are necessary to estimate

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