Researchers have wanted to investigate the relationship between physical activity and mental health. Below isan example of sample data for a study that looked at ten people who were measured on both variables: Minutes of Exercise in a dayand a Mental Health measure(on a scale from 0-50, where higher numbers mean better mental health). Use the summary statistics below to answer the questions:

Researchers have wanted to investigate the relationship between physical activity and mental health. Below is an example of sample data for a study that looked at ten people who were measured on both variables: Minutes of Exercise in a day and a Mental Health measure (on a scale from 0-50, where higher numbers mean better mental health). Use the summary statistics below to answer the questions: Descriptive Statistics Mean Std. Deviation N Minutes of exercise per day 25.30 9.97 10 Mental Health Measure 31.10 11.34 10 EXY = 8471 a) What is the value of Pearson's r? (2 pts) b) What size correlation is this? (1 pt) c) What is the null hypothesis (in words or symbols)? (1 pt) d) If we wanted to test for significance, assuming a = .05, two tailed, what is the rev (the critical value for rejecting r)? (1 pt) e) Can we reject the null and what does that mean for this study (be specific for the variables in this study)? (1 pt)