Question: In problem you drew three conclusions based on HSD tests. Each could be wrong. For each conclusion, identify what type of error is possible.
Problem: Many college students are familiar with meditation exercises. One question about meditation that has been answered is: Are there physiological effects? The data that follow are representative of answers to this question. These data on oxygen consumption (in cubic centimeters per minute) are based on Wallace and Benson's article in Scientific American (1972). Analyze the data. Include HSD tests and an interpretation that describes the effect of meditation on oxygen consumption.
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Subjects
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Oxygen consumption (cc/min)
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Before
meditation
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During
meditation
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After
meditation
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|
S1
|
175
|
125
|
180
|
|
S2
|
320
|
290
|
315
|
|
S3
|
250
|
210
|
250
|
|
S4
|
270
|
215
|
260
|
|
S5
|
220
|
190
|
240
|