A researcher is conducting a study to investigate the correlation between sleep duration and overall well-being in a sample of 10 subjects. The sleep duration, measured in hours, and well-being scores (on a scale from 1 to 10, with higher scores indicating better well- being) for each subject are provided below. Test with = .05. Sleep Time (hrs) Well-being Score 7 9 6 6 8 9 5 5 7 7 6 7 9 9 4 4 8 7 7 7 a. Write a research question. b. State the hypotheses. c. What is the value of df? What is the value of r critical