A camera company was interested in knowing if offering a discount on their cameras would have an effect on customers willingness to purchase the camera. On January 05, 2021, for one particular camera model, a discount tactic was used - Original price $169.99 and discount $50! In a laboratory experiment, 30 respondents were shown the camera with this original price and the sale price after discount. Willingness to purchase was then measured.

Name the independent variable and the dependent variable in the above experiment? Independent Variable: Dependent Variable: Dependent variable was measured only after they were shown the discount on the price of the camera. Name the above experimental design.

In terms of Xs and Os (with labels describing the Xs and Os), completely draw the experimental design that was adopted in the experiment above. What is the weakness of this experimental design for the above case?