Patients with chronic obstruction pulmonary disease (COPD) volunteered to be tested for exhaled nitric oxide (eNO) while resting and after a 6 minute walk test. Each subject was measured under each condition, and the order of presentation (resting then walking or the other way around) was randomized. Researchers believe the eNO should be higher while walking than resting for COPD patients. The data are summarized in the table below. Assume each of the distributions of eNO - while walking, while resting, and the differences - is not heavily skewed.
-Write the null and alternative hypotheses in proper notation.
A) versus
B) versus
C) versus
where d is the difference Walking - Resting
D) versus
where d is the difference Walking - Resting
Correct Answer:
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Q12: The following summary statistics and two dotplots
Q13: The following summary statistics and two dotplots
Q14: The following summary statistics and two dotplots
Q15: The following summary statistics and two dotplots
Q16: Patients with chronic obstruction pulmonary disease (COPD)
Q18: Patients with chronic obstruction pulmonary disease (COPD)
Q19: Patients with chronic obstruction pulmonary disease (COPD)
Q20: Patients with chronic obstruction pulmonary disease (COPD)
Q21: A past statistics project investigated how well
Q22: A past statistics project investigated how well
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