Question 5 (3 marks) Is there a relationship between Age groups and Marathon Completion Time? Choose a suitable test to answer this question and provide a short description of results from your data analysis. Question 6 (3 marks) Select those who have a score of 49 or less [on Statistics Anxiety Rating Scale! and test the hypothesis that they represent a population where people spend 9 hours on average per week doing fitness training. Write null and alternative hypotheses. Choose a suitable test to answer this question and provide a short description of results from your data analysis. Question 7 (3 marks) Test the hypothesis that there is no significant difference in Resting Energy Expenditure among different age groups. Choose a suitable test to answer this question and provide a short description of results from your data analysis