statistics :

Question 1 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. What type of test is appropriate to compare patients' before and after scores on walking distance? ID Pre Post 1 40 100 2 30 140 3 50 80 4 65 80 5 15 100 What type of statistical test will we use? One sample t-test ANOVA Independent samples t-test Related samples t-testQuestion 2 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. Step 1. - Identify the experimental question A. Does the drug improve walking distance in Parkinson's patients? A. Is the improvement in walking distance due to taking this drug different for men vs. women? A. None of the above A. Is there an association between walking distance and drug effectiveness? Question 3 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. What is the value of tcrit? If) Not enough information given Iij 2.1 If) 2.4 ' Question 4 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. What is the value of tabs