The post-lunch dip is the drop in mental alertness after a midday meal. Does an extract of the leaves of the ginkgo tree reduce the post-lunch dip? Assign healthy people aged 18 to 40 to take either ginkgo extract or a placebo pill. After lunch, ask them to read seven pages of random letters and place an X over every e. Count the number of misses per line read. Here are the summaries of performance after 13 weeks of either gingko extract or placebo: GroupGroup sizeMeanStd. dev.Gingko210.063830.01462Placebo180.053420.01549 Is there a significant difference between the two groups?

Name: The post-lunch dip is the drop in mental alertness after a midday meal
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Description: The post-lunch dip is the drop in mental alertness after a midday meal. Does an extract of the leaves of the ginkgo tree reduce the post-lunch dip? Assign healthy people aged 18 to 40 to take either ginkgo extract or a placebo pill. After lunch, as

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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The post-lunch dip is the drop in mental alertness after a midday meal. Does an extract of the leaves of the ginkgo tree reduce the post-lunch dip? Assign healthy people aged 18 to 40 to take either ginkgo extract or a placebo pill. After lunch, ask them to read seven pages of random letters and place an X over every e. Count the number of misses per line read. Here are the summaries of performance after 13 weeks of either gingko extract or placebo:

Group	Group size	Mean	Std. dev.
Gingko	21	0.06383	0.01462
Placebo	18	0.05342	0.01549

Is there a significant difference between the two groups?

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