Problem 8Q

When you are running and want to stop quickly, you must decelerate quickly. (a) What is the origin of the force that causes you to stop? (b) Estimate (using your own experience) the maximum rate of deceleration of a person running at top speed to come to rest.

Instructor Mitchell Paukner mpaukner@wisc.edu Office: Room 1276 Medical Science Center on Tuesday (2:30-3:30) Friday (1-2) Statistics - field or discipline of dealing with incomplete information Inference - making decisions based on incomplete information Statistical Questions 1) Is a new treatment method effective Or more effective than traditional treatments Is it as effective but cheaper 2) Which candidate will win an election 3) What teams will make the final four 4) What evaluations of an athlete are the best predictors of success 5) What evaluations of a student are the best predictors of success Measure every object in the population Population - The entire set of objects of interest Sample - subset of objects from your population The most important component of a good sample is if it’s representative of your population, not size. If predicting what candidate will win an election, it’s better to ask 5,000 people from all over the US than 10,000 all from Wisconsin. Try to ‘reduce’ and/or ‘organize” the data Graphical Summaries Numerical Summaries Statistic - is a reduction of sample data Sample mean - (X1 + X2 +X3+...+X300)/300 Types of Data Categorical Numeric Qualitative Quantitative Hair color, eye color, gender, ra