Do private practice doctors and hospital doctors have the same distribution of working hours, i.e., are the two populations homogeneous? Suppose that a sample of 100 private practice doctors and 150 hospital doctors are selected at random and asked about the number of hours a week they work. Private 16 4O 38 Practice a. Write H0 and Ha b. What is the pvalue? c. Do the data support your claim at the 5% level