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summary statistics and methodology part 1
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Summary Statistics and methodologyLecture 1, Recap RBMS
,Thus, null hypothesis testing
,Research question
A well-formulated research question describes:
• Population
• Intervention
• Comparison
• Outcome variables
• Study design
, Hypotheses
Research report: Hypotheses
• Research question:
Does deep breathing, compared to sham breathing,
change parasympathetic and sympathetic tone in healthy adults?
• Null hypothesis: Two-sided
• There is no difference in parasympathetic tone between deep and sham breathing.
• There is no difference in sympathetic tone between deep and sham breathing.
• Alternative hypothesis: Two-sided
• There is a difference in parasympathetic tone between deep and sham breathing.
• There is a difference in sympathetic tone between deep and sham breathing.
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