what statistic will use in hypothesis?
When controlling for age and geographic location, when a person who goes to 4 or more seminars on obesity prevention has a lower BMI than a person who goes to less than 4 seminars on obesity prevention.
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If you "pair" the age and geographic locations BMIs, you’d use a paired student’s t-test.
If you don’t "pair" (the age and/or geographic location isn’t the same between people), an unpaired t-test.
I do stats all day.