Question
A colonoscopy is a screening test for colon cancer, recommended as a routine test for adults over age 50. One study provides some evidence that
A colonoscopy is a screening test for colon cancer, recommended as a routine test for adults over age 50. One study provides some evidence that this test saves lives. The proportion of people with colon polyps expected to die from colon cancer is 0.01. A sample of 2602 people who had polyps removed during a colonoscopy were followed for 20 years, and 12 of them died from colon cancer. We want to assess the strength of evidence that the proportion of people who die from colon cancer after having polyps removed in a colonoscopy is less than the expected proportion (without a colonoscopy) of 0.01. Conduct a full hypothesis test to test the claim that the proportion of people who die from colon cancer after having polyps removed in a colonoscopy is less than the expected proportion. You need to state your hypothesis, "do any" calculations using StatKey or a Calculator (please explain which one you used and how) and then write out your two-sentence conclusions.
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