An article reported the results of a study comparing the proportion still experiencing pain using a new medication (p1) compared to an older medication (p2). The expectation of the study was that the proportion still experiencing pain would be lower with the new medication. The study showed that the proportion still experiencing pain was lower for the new medication (p1) when compared to the old medication (p2). The researcher is quoted as saying that there was less than a 5 in 100 probability that the observed differences in proportions were due to chance. In statistical terms, the researcher was saying the results of the study are: Group of answer choices a: Statistically significant at the .05 level of significance. b: Not statistically significant at the .05 level of significance. c: Probably due to sampling error. d: Statistically significant at the .01 level of significance.
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A newspaper article reported the results of a study comparing the proportions experiencing pain relief using a new medication compared to using a placebo. The study showed that the proportion experiencing pain relief was higher for the new medication when compared to the placebo. The researcher is quoted as saying that there was less than a one in 100 probability that the observed differences in proportions was due to chance. In statistical terms, the research was saying that the results are: not statistically significant at the .01 level of significance probably due to sampling error probably due to chance statistically significant at the .01 level of significance
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Adi S.
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