Question 1 A newly graduated public health student starts an intervention to increase the amount of exercise in a south San Jose community. He enrolls 20 participants, and measures their mean daily exercise duration before the program and after the program. n = 20 Mean (minutes) Std. Dev Before the onroram 20 15.75 Aerthe --roram 34.03 Delta (D) 18.28 23.55 For this study, is there a significant increase in exercise after the program? To answer this question, conduct a statistical test. A. What type of sample is this? (circle one) One-sample Paired Independent B. State the Hypotheses C. Is this a 1-tailed or 2-tailed test? (circle one) 1-tailed / 2-tailed D. Calculate the Standard Error [Report your answer to 3 decimal places] E. How many degrees of freedom are there? F. Calculate the test statistic [Report your answer to 3 decimal places]