Cigarette SmokingA researcher found that a cigarette smoker smokes on average33

cigarettes a day. She feels that this average is too high. She selected a random sample of10

smokers and found that the mean number of cigarettes they smoked per day was27.The sample standard deviation was2.5.At=0.01,is there enough evidence to support her claim? Assume that the population is approximately normally distributed. Use the critical value method and tables.

Find the critical value(s). Round the answer to three decimal places. If there is more than one critical value, seperate them with commas.