(e) Confirm whether STATA uses [6.21] as the form it reports for adjusted R2, ("Adj -R-squared ")_ 2. [30 pts] For this part of the exam , please rst read the article :Ladies First ? A field study of discrimination in coffee shops provided in Blackboard . Notice that in many empirical studies , authors will report multiple regression models allowing the reader [consumer of the research more information about model selection (i) Using Table 3, consider the results for Model 1 and Model 2. Focus on the results for the variables Female and Fancy Order. Discuss the specic bias introduced into the coefcient on Female when the variable Fancy Order is submitted . Beyond the problem of omitted variables bias , what is other evidence you could use to justify that Fancy Order should be included in the model ? (ii) Using Table 3, consider the results for Model 3. Conduct a 4-step hypothesis test for the coefcient on Employee Characteristics iAll