Lecture 12 - Sampling Analysis

Lecture 12 - Sampling Analysis - Psych 301W Lecture 11...

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Psych 301W – Lecture 11 Fall 09 - Wede Lecture 11– Sampling Analysis and Hypothesis Testing Summarizing the Sample Data Raw data The data collected must be transformed to be meaningfully interpreted using such techniques as Frequency distributions Descriptive statistics _______________________ A table indicating how many individuals in the sample fall into each of a set of categories _______________________ A visual display of a frequency distribution Grouped frequency distributions Combine adjacent values into a set of categories and examine the frequencies of each of the categories ________________________ A visual display of a grouped frequency distribution Frequency curve Frequencies in a grouped frequency distribution are indicated with a line rather than bars __________________________ A graphical summarization of the raw data such that the original data values can still be seen Descriptive statistics Numbers that summarize the pattern of scores observed on a measured variable This pattern is called the distribution of the variable A distribution can be described in terms of its Central tendency and Dispersion (spread) _______________________ Summarized using the Mean Median Mode 1
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Psych 301W – Lecture 11 Fall 09 - Wede _________________________ Summarized using the Variance Standard deviation Mean Symbolized as ____________________
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