MATH 1050Y Lecture Notes - Lecture 3: Point Estimation, Situation Two, Statistical Hypothesis Testing
14 Apr 2018
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Important to note if the data comes from two independent samples or from paried dependent samples: paired (or dependent samples) Each observation from one group is coupled with a particular observations from the other group. From husband and wife ( ex: what kind of food they eat, similar ) From other older siblings and younger sibling. If there is no pairing, then the samples are independent: ex: same person measured twice is dependent, ex: different people independent. One group subtract from the other same direction ex: wife minus husbands. Transform the original data from two variables into a single variable that contains the difference between the scores in each. It is important that we always subtract using a consistent order. After the differences have been computed, we can apply either a one -sample confidence apporch or one-sample hypothesis est approach to the difference.
