Cigarette Smoking A researcher found that a cigarette smoker

Last updated: 7/8/2022

Cigarette Smoking A researcher found that a cigarette smoker smokes on average 32 cigarettes a day. She feels that this average is too high. She selected a random sample of 9 smokers and found that the mean number of cigarettes they smoked per day was 29. The sample standard deviation was 2.9. At a=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. Part 1 of 5 (a) State the hypotheses and identify the claim. Hu µ=32 not claim H₁ µ<32 claim This hypothesis test is a one-tailed Part 2 of 5 Part: 2/5 Part 3 of 5 ▼ (b) Find the critical value(s). Round the answer to three decimal places. If there is more than one critical value, seperate them with commas. Critical value(s): -2.896 ▼ I= ▼test. (c) Compute the test value. Always round t score values to three decimal places.