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1. For each of the following data sets find the following. (You can use the Data Analysis Toolpak (Descriptive Statistics) for most of the calculations, but you’ll need VAR and STDEV functions to calculate the unbiased estimates.) Mean Median Mode Range Variance (for describing the data) Standard deviation (for describing the data) The unbiased estimate of the variance The unbiased estimate of the standard deviation Data Set A Data Set B Data Set C Scores on a Math Test Scores on English Test Scores on a Test of Spatial Ability 78 88 100 55 90 124 73 67 84 88 77 88 90 71 104 92 80 108 73 68 78 80 77 84 67 77 84 76 92 110
2. Describe the normal curve.
3. Compute the z scores for the following raw scores where X = 74 and the standard deviation = 8. A. 66 B. 86
4. Using a distribution with a mean of 100 and a standard deviation of 15. A. What is the percentile score of a score of 112? B. What is the percentile score of a score of 82?
The results of Schachter and Singer's experiment in which participants were injected with epinephrine just before spending time in either a "happy" condition or an "angry" condition support the idea that:
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