A recent study 6 considered whether dogs could be trained to detect if a person has lung
Question:
a. Set up the null hypothesis that the dog’s predictions correspond to random guessing.
b. Set up the alternative hypothesis to test whether the probability of a correct selection differs from random guessing.
c. Set up the alternative hypothesis to test whether the probability of a correct selection is greater than with random guessing.
d. In one test with 83 Stage I lung cancer samples; the dogs correctly identified the cancer sample 81 times. The test statistic for the alternative hypothesis in part c was z = 17.7. Report the P-value to three decimal places, and interpret. (The success of dogs in this study made researchers wonder whether dogs can detect cancer at an earlier stage than conventional methods such as MRI scans.)
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Related Book For
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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