A market researcher is interested in determining whether consumers have a preference for one type soft drink over others. 400 consumers are randomly sampled and take a blind taste-test. The soft drink preferences are recorded in the table below. Perform a goodness-of-fit test on these data, using alpha o = .05 Coke Pepsi Diet Coke Diet Pepsi 160 80 40 120 Step 1: State the null and research hypotheses in symbols. (2 points) Step 2: Find the critical value (1 point) Step 3: Compute the appropriate test statistic (4 points) Step 4: Evaluate the null. Reject or Fail to Reject? (1 point) Conclusion: Is there preference? Yes or No? (1 point)