PHHE 605 Homework 7 Q4: A rehabilitation center researcher was interested in examining the relationship between physical fitness prior to surgery of persons undergoing corrective knee surgery and time required in physical therapy until successful rehabilitation. Patient records in the rehabilitation center were examined, and 24 male subjects ranging in age from 18 to 30 years who had undergone similar corrective knee surgery during the past year were selected for the study. The number of days required for successful completion of physical therapy and the prior physical fitness status (below average, average, above average) for each patient follow. 2 3 5 6 7 8 9 10 1 Below 29 42 38 30 Average 2 Average 30 35 29 21 31 29 35 29 33 3 Above 26 32 21 20 23 22 Average a) Explore the with side-by-side box-plots. Discuss the results of your graphical exploration. (5 points) b) Calculate group mean and standard deviation. (5 points) c) Complete a one-way analysis of variance for this problem. Show all hypothesis-testing steps and interpret the results. (10 points)