a through f

16. A health psychologist is interested in whether a no carb diet or no sugar diet is more effective for weight loss. The psychologist predicts there will be a difference in weight loss between a no carb diet and a no sugar diet. She recruits 16 participants and randomly assigns half of them to a no carb diet and the other half to a no sugar diet. After two weeks she records the number of pounds lost by each participant. Use the data below to answer the following questions. No Carb Diet (XD) No Sugar Diet (X2) a. Is the research hypothesis one tailed or two tailed? (1 point) b. State the research hypothesis. (1 point) c. State the null hypothesis. (1 point) d. What is the independent variable? (1 point) e. What is the dependent variable? (1 point) f. Calculate f using the appropriate test. (4 points)