Help with 6 to 9 listed

D Question & The following scenario will be used for questions 6 - 9. The study on weight loss is trying to determine whether a certain type of low-carb diet has a significantly different mean loss of weight than that of is low fat diet. From a sample of 19 participants taking the low-carb diet, the mean weight loss was 4.7 kilograms with a standard deviation of 3.16 kilograms: From a separate sample of 21 participants taking a low-fat diet, the mean weight loss was 2.6 kilograms with a standard deviation of 5.90 kilograms. Call population 1 for those trying the low-card diet; call population 2 for those trying the low-fat diet. Test the claim that the true means for weight loss between those taking the low-carb diet and those taking the low-fat diet are different. Which of the following is the alternative hypothesis? (Enter the number corresponding to your choice.) 1. Him = H2 5. H1:ud = 0 2. H1:th # H2 6. H1:Ud # 0 3. Him > 2 7. H1: Ud >0 4. Him