For each of the following scenarios, discuss whether profit opportunities exist from trading in the stock of the firm under the conditions that (1) the market is not weak form efficient, (2) the market is weak form but not semi strong form efficient, (3) the market is semi strong form but not strong form efficient, and (4) the market is strong form efficient. a. The stock price has risen steadily each day for the past 30 days. b. The financial statements for a company were released three days ago, and you believe you’ve uncovered some anomalies in the company’s

An important application of regression analysis in accounting is in the estimation of cost. by collecting data on volume and cost and using the least squares method to develop an estimated regression equation relating volume and cost, an accountant can estimate the cost associated with a particular manufacturing volume. consider the following sample of production volumes and total cost data for a manufacturing operation. production volume (units) total cost ($) 400 4000 450 5000 550 5400 600 5900 700 6400 750 7000 compute b 1 and b 0 (to 2 decimals if necessary). b 1 b 0 complete the estimated regression equation (to 2 decimals if necessary). = + x what is the variable cost per unit produced (to 1 decimal)? $ compute the coefficient of determination (to 4 decimals). note: report r 2 between 0 and 1. r 2 = what percentage of the variation in total cost can be explained by the production volume (to 2 decimals)? % the company's production schedule shows 500 units must be produced next month. what is the estimated total cost for this operation (to 2 decimals)? $

True or false: a fitted model with more predictors will necessarily have a lower training set error than a model with fewer predictors.

You've arrived at the pecan shellers conference—your first networking opportunity. naturally, you're feeling nervous, but to avoid seeming insecure or uncertain, you've decided to a. speak a little louder than you would normally. b. talk on your cell phone as you walk around. c. hold an empowered image of yourself in your mind. d. square your shoulders before entering the room.