Art, Music, and Creative Writing homework help. 2. Some researchers claim that herbal supplements such as ginseng or ginkgo biloba enhance human memory. To test this claim, a researcher selects a sample of n=25 college students. Each student is given a ginkgo biloba supplement daily for six weeks and then all the participants are given a standardized memory test. For the population, scores on the test are normally distributed with ? = 70 and ? = 15. The sample of n = 25 students had a mean score of . Set the alpha level for the study to be .05.
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