PSY-0031 Chapter Notes - Chapter 8: Fair Coin, Standard Score, Standard Deviation
31 Jan 2017
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Document Summary
The goal of inferential statistics is to use the sample scores to make a statement about a characteristic of the population. Experimenter collects data in an experiment in attempt to validate a hypothesis. Parameter estimation - interested in determining the magnitude of a population characteristic. Sampling with replacement is when you sample from the population one score at a time and then place that sample back into the population before drawing again. The sample has to be representative of the population and the rules of probability must apply. Methods include numbering pieces of paper and pulling them out of a hat, using a randomly generated sample from a computer program. Sampling without replacement is when the members of the sample are not returned to the population before subsequent members are selected. Must be used when selecting participants for an experiment.
