3. 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 u = 70 and o = 15. The sample of n = 25 students had a mean score of M=75. a. Are the data sufficient to conclude that the herb has a significant effect on memory? Use a two-tailed test with a = .05. b. Compute Cohen's d for this study.

3. 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 u = 70 and o = 15. The sample of n = 25 students had a mean score of M=75. a. Are the data sufficient to conclude that the herb has a significant effect on memory? Use a two-tailed test with a = .05. b. Compute Cohen's d for this study.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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