Homework 2

Due Tuesday, September 18

  1. Do (American) footballs filled with helium go farther? Two identical footballs, one air-filled and one helium-filled, were used outdoors on a windless day at The Ohio State University's athletic complex. The kicker was a novice punter and was not informed which football contained the helium. Each football was kicked 39 times. The kicker changed footballs after each kick so that his leg would play no favorites if he tired or improved with practice. Do an exploratory data analysis of the helium-filled footballs dataset.

  2. Do an exploratory data analysis of the Pima Indians Diabetes dataset. The primary question of interest is in predicting diabetes from the other variables. More info is available in this file. Note that while the info file claims there is no missing data, in fact, many of the zeroes are indeed missing data (for example, a zero blood pressure). There are 532 complete cases.