2. A market research study hopes | Step 1: Formulate the null and alternative hypothesis. Given: to determine the effectiveness of H(o): a celebrity endorser of their wine product. The effectiveness will be based on the average volume sales per day. They believe it will { H(a): increase in a test market of 11 days before and after endorsement. Before After (no. of units (no. of units sold/day) sold/day) Step 2: Level of Significance. 35 42 51 40 Step 3: Test Statistic 50 45 39 51 32 46 49 49 29 60 What can be concluded at 5% significance level? Step 4: Critical Values Step 5: Decision Step 6: Conclusion/Interpretation