Res342 Week 3 Statistics Case Study

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RES342 Week 3 Quiz 1. A frequency distribution can be shown as • a statistic • a histogram • a scatter plot • a stem and leaf plot 2. Simple statistics are • for simpletons • presented in stem and leaf plots • things like correlations • things like standard deviations 3. What would you do with a median? • Use it do show spread. • Use it for normally distributed data. • Cross it against oncoming traffic • Indicate the middle of some data. 4. The following are measures of spread: • standard deviation • root mean square errors • percentile ranges • polyunsaturated margarine 5. Describe what the standard error of the estimate is. 6. Confidence intervals... • are a new form of sprint training. •

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