Please answer the following questions based on the data in the photo below. Please show your work, label your answers (number 1, 2, 3) and use the appropriate formulas (no short cuts)! Try to include explanations as well because I have trouble understanding these concepts. Questions: 1. Determine the regression equation.2. What is the effect size? (Use formula for adjusted r^2)3. You decide that your next step is to perform in multiple regression analysis. Choose an orthogonal variable to add to your regression equation. Explain why you think it would contribute to your prediction. Thank you!

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