PSYC 210 Chapter Notes - Chapter 5: Normal Distribution, Confidence Interval, Standard Score
14 Oct 2012
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With a larger sample, there is a problem with determining the characteristics of the comparison distribution (cd). In the previous chapter (samples of 1) the cd has been a distribution of individual scores. The score you care about most is the mean of a group of scores. Suppose you were to compare the mean of this sample of 64 individuals" scores to a distribution of a population of individual scores. This is like comparing apples with oranges: wrong. Determining the characteristics of a distribution of means. Step 2 of hypothesis testing involves determining the characteristics of the comparison distribution. The three key characteristics of the comparison distribution that you need to determine are its mean, spread (using and 2) Its spread (measure using variance and standard deviation) The mean of a distribution of means is the same as the mean of the population of individuals ( )
