A researcher predicts that smoking cigarettes decreases a

A researcher predicts that smoking cigarettes decreases a person’s sense of smell. On a standard test of olfactory sensitivity, the μ for nonsmokers is 18.40. By giving this test to a random sample of people who smoke a pack a day, the researcher obtains the following scores.16,14,19,17,16,18,17,15,18,19,12,14

a) Do the 6-step hypothesis testing process.


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