~ 2 3 4 5 6 Cigarette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a day. She feels that this average is too low. She selected a random sample of 11 smokers and found that the mean number of cigarettes they smoked per day was 31. The sample standard deviation was 2.5. At a= 0.05, is there enough evidence to support her claim? 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) H >O O