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Unformatted text preview: The actual reduction in heart attack occurrence went from 8.2% to 6.7% Is this meaningful? o IN people without cardiovascular disease aspirin reduces the chance of heart attack by one tenth Down from .57% to .51% This effect may be significant but the descriptive statistics gives a richer understanding of the meaningfulness. The Balance of Inferential and Descriptive Stats There is a need to consider both in order to determine how meaningful things really are The Effects of Positive Affect (from receiving candy) Article You will use both in your scientific reports Descriptive- Describe your data- usually central tendencies Inferential- Used to infer findings from your sample to the population o Whether or not your findings are reliable Next class- go into more details about descriptive statistics o Finish reading chapter 2 move on to chapter 3 if you want to get ahead...
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- Spring '11