3. It has been proposed that drinking green tea on a regular basis will improve people's memory, and that the more green tea you drink, the better your memory will become. To test whether this is true, people are randomly assigned to one of three groups, which will consume either no green tea, one cup of green tea daily, or 3 cups of green tea daily. After 4 weeks, the participants are given a memory test and the following summary statistics were obtained: n¡ 31 X-bar; S₁ 11.4 2.18 No green tea daily 25 4.8 1.85 1 cup green tea 3 cups green tea daily 23 9.3 2.04 Is the prediction that the more green tea you drink the better your memory will be supported by the data (alpha = .05)??

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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3. It has been proposed that drinking green tea on a regular
basis will improve people's memory, and that the more
green tea you drink, the better your memory will become.
To test whether this is true, people are randomly assigned
to one of three groups, which will consume either no green
tea, one cup of green tea daily, or 3 cups of green tea daily.
After 4 weeks, the participants are given a memory test and
the following summary statistics were obtained:
n₁
31
X-bar;
S₁
11.4
2.18
No green tea
daily
25
4.8
1.85
1 cup green tea
3 cups green tea daily
23
9.3
2.04
Is the prediction that the more green tea you drink the better
your memory will be supported by the data (alpha = .05)??
Transcribed Image Text:3. It has been proposed that drinking green tea on a regular basis will improve people's memory, and that the more green tea you drink, the better your memory will become. To test whether this is true, people are randomly assigned to one of three groups, which will consume either no green tea, one cup of green tea daily, or 3 cups of green tea daily. After 4 weeks, the participants are given a memory test and the following summary statistics were obtained: n₁ 31 X-bar; S₁ 11.4 2.18 No green tea daily 25 4.8 1.85 1 cup green tea 3 cups green tea daily 23 9.3 2.04 Is the prediction that the more green tea you drink the better your memory will be supported by the data (alpha = .05)??
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