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Name: A nutrition store in the mall is selling "memory booster" which is a c
Uploaded: 2024-03-20T07:07:12.000Z
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Description: A nutrition store in the mall is selling "memory booster" which is a concoction of herbs and minerals that is intended to improve memory performance. To test the effectiveness of the herbal mix, a researcher obtains a sample of n=16 participants and

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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A nutrition store in the mall is selling "memory booster" which is a concoction of herbs and minerals that is intended to improve memory performance. To test the effectiveness of the herbal mix, a researcher obtains a sample of n=16 participants and has each person take the suggested dosage each day for 4 weeks. At the end of the four week period, each individual takes a standard memory test. The scores from the participants produced a M=26 with a sample variance of s²=64. In the general population, the standardized test is known to have a μμ=20.

a. Do the sample data support the conclusion that memory booster has a significant effect? Use a two-tailed test with αα=.05.

b. Compute Cohen's d to measure the size of the treatment effect.

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