statistics :

Question 5 1 pts Suppose a new drug is intended to improve walking distance in patients with Parkinson's Disease. A researcher measures patients' walking distance in feet before and after trying the drug for 9 weeks. Compare Observed to Critical Value & Make Conclusion Fail to reject the null hypothesis. There is no significant difference in walking distance after taking the drug. O Reject the null hypothesis. There is a significant difference in walking distance after taking the drug. Question 6 1 pts Which of these is an advantage of using a related samples t-test? It eliminates contrast effects. It compares multiple (3+) samples instead of 2. It is more powerful than independent samples t-tests. It helps deal with the issue of fatigue in participants.\fQuestion 1 1 pts What statistical test should we use? A Related samples t-test A One-Sample t-test A Independent Samples t-test A AN OVA Question 2 1 pts Step 1. What is your experimental question? A Does living with a roommate predict less anxiety? A Does anxiety predict whether students live alone or with a roommate? A What is the effect of living situation on anxiety scores? A Is living alone better