PSYC 2300 Lecture Notes - Lecture 8: Standard Deviation, Technology In Revelation Space, Statistical Inference
8 Apr 2016
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Document Summary
Sample= portion of a population that satisfies a case. Populations are often not measured due to difficulty. Samples are instead studied that are reflective of the population. If we take a sample (random), we could describe the population. Something believed to be found in research. Explain why a hypothesis is wrong if it is wrong. Null hypothesis: no expected relationship between two variables. The car driven and one"s car on the final. H0 is used to represent a null hypothesis. Alternative hypotheses/ research hypotheses: where a relationship is believed to occur between two variables. The more booze you drink will likely be involved more in automobile accidents. Directional: the nature of the relationship is given. Students who work less than ten hours a week will have a higher gpa. Relationship between organic foods and overall health. No specification of direction of the relationship. Watching excessive amounts of tv and communication skills.
