You have 2 versions of an ad. You consider randomly running one version on Monday and the other on Tuesday, which of these potential issues could affect your conclusion? Reverse causality Seasonal effect Cost Order effect Question 4 10 pts Which of these issues can be classified into market effects. The effect of an ad might only be observed one week after it ran. Your competitors might change their strategy depending on the ad you test. The market you are testing the treatment in is too small to collect enough observations. You test a discount in one of your store and clients from your other store might drive 2 more miles in order to buy from the one with a discount