Medical Operations The director of a medical hospital feels that her surgeons perform more operations per year than the national average of 211. She selected a random sample of 15 surgeons and found that the mean number of operations they performed was 212.6. The standard deviation of the sample was 3.8. Is there enough evidence to support the director's feelings at a = 0.10? Assume that the population is approximately normally distributed. Use the critical value method and tables. Part: 0 / 5 Part 1 of 5 (a) State the hypotheses and Identify the claim. Ho: (Choose one) V >0 0