Intro to Stat_Part_6

Intro to Stat_Part_6 - 32 CHAPTER 2. DESCRIPTIVE STATISTICS...

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32 CHAPTER 2. DESCRIPTIVE STATISTICS a. Should all bars have the same width, based on the data? Why or why not? b. How should the < 20,000 and the 100,000+ intervals be handled? Why? d. Find the 40th and 80th percentiles Exercise 2.5 (Solution on p. 46.) Following are the published weights (in pounds) of all of the team members of the San Francisco 49ers from a previous year (Source: San Jose Mercury News). 177; 205; 210; 210; 232; 205; 185; 185; 178; 210; 206; 212; 184; 174; 185; 242; 188; 212; 215; 247; 241; 223; 220; 260; 245; 259; 278; 270; 280; 295; 275; 285; 290; 272; 273; 280; 285; 286; 200; 215; 185; 230; 250; 241; 190; 260; 250; 302; 265; 290; 276; 228; 265 a. Organize the data from smallest to largest value. b. Find the median. c. Find the first quartile. d. Find the third quartile. e. Construct a box plot of the data. f. The middle 50% of the weights are from _______ to _______. g. If our population were all professional football players, would the above data be a sample of weights or the population of weights? Why? h. If our population were the San Francisco 49ers, would the above data be a sample of weights or the population of weights? Why? i. Assume the population was the San Francisco 49ers. Find: i. the population mean, μ . ii.
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This document was uploaded on 10/31/2011 for the course STA 2023 at University of Florida.

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Intro to Stat_Part_6 - 32 CHAPTER 2. DESCRIPTIVE STATISTICS...

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