Distribution Free Hypothesis Testing: Paired Sample Sign Test Example (A)
Автор: Mrs E Hodgetts
Загружено: 2021-06-21
Просмотров: 733
Описание:
To measure the effectiveness of a drug for asthmatic relief, 12 subjects, all susceptible to asthma, were each administered the drug after one asthma attack and the placebo after a separate asthma attack.
One hour after the attack an asthmatic index was obtained on each subject with the following results
Subject 1 2 3 4 5 6 7 8 9 10 11 12
Drug 28 31 17 18 31 12 33 24 18 25 19 17
Placebo 32 33 23 26 34 17 30 24 19 23 21 24
Making no assumptions regarding the distribution of these data, investigate the claim that the drug significantly reduces the asthmatic index using a sign test at the 5% significance level
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