Q1. A study was conducted to determine if the physical fitness prior to surgery of persons undergoing a knee surgery has any effect on time required in post-surgery physical therapy until successful rehabilitation. The survey record of 24 male patients (between 35 to 45 years) and the number of days required for physical therapy and prior to fitness condition were noted and shown in the following table. Prior Physical Condition Poor Average Good Number of days of physical therapy 29 42 30 35 38 39 32 26 20 21 40 43 28 31 22 42 31 35 33 29 40 30 29 23 Test the claim by performing one-way ANOVA that prior physical condition has an influence on the length of physical therapy. The tabulated F value is 3.47.