Cell Phone Service Provider Percent Cumulative Percent Verizon AT&T T-Mobile Sprint Other 37.3 29.7 13.3 8.9 10.8 37.3 6

[answerhappygod]

Cell Phone Service Provider Percent Cumulative Percent Verizon At T T Mobile Sprint Other 37 3 29 7 13 3 8 9 10 8 37 3 6 1 (54.56 KiB) Viewed 92 times

Cell Phone Service Provider Percent Cumulative Percent Verizon AT&T T-Mobile Sprint Other 37.3 29.7 13.3 8.9 10.8 37.3 67.1 80.4 89.2 100.0 Source: Web survey of 158 statistics students. DO-IT-YOURSELF .50 (a) Clip an example of a deceptive visual data presentation from a recent magazine or newspaper. (If it is from a library, make a photocopy instead.) Try to choose an outrageous example that violates many principles of ideal graphs. (b) Cite the exact source where you found the display. (c) What do you think is its presumed purpose? (d) Write a short, critical evaluation of its strengths and weaknesses. Be sure to attach the original clipping (or a good photo- copy) to your analysis. ufte, Edward R. The Visual Display of Quantitative Information. nd ed. Graphics Press, 2004. Vilkinson, Leland. The Grammar of Graphics. Springer, 2005. Jong, Dona M. The Wall Street Journal Guide to Information Fraphics: The Dos and Don'ts of Presenting Data, Facts, and
140 150 160 170 180 Δ Δ Δ Δ 160 170 180 190 25 24 4 2 56 Total DO-IT-YOURSELF SAMPLING PROJECTS 4.93 (a) Record the points scored by the winning team in 30 col- lege football games played last weekend (if it is not football season, do the same for basketball or another sport of your choice). If you can't find 30 scores, do the best you can. (b) Make a frequency distribution and histogram. Describe the histogram. (c) Calculate the mean, median, and mode. Which is the best measure of center? Why? (d) Calculate the standard deviation and coefficient of variation. (e) Stan- dardize the data. Are there any outliers? (f) Make a box plot. What does it tell you? 4.94 On the web, look up the defects per 100 for all vehicles in the latest J.D. Power Initial Quality Ratings. (a) Make a histogram and describe it. (b) Calculate descriptive statistics of center, variation, and shape. State in words 1 4.
what they tell you. (c) Make a box plot. What does it tell you? SCATTER PLOTS AND CORRELATION Wote: Data files for Exercises 4.95 through 4.98 may be down moaded from McGraw-Hill's Connect® or may be obtained from wour instructor 1.95 (a) Make an Excel scatter plot of X = 1990 assault rate per 100,000 population and Y = 2004 assault rate per 100.000 population for the 50 U.S. states. (b) Use Excel's =CORRE function to find the correlation coefficient. (c) What do the state for these two years? (d) Use MegaStat or Excel to find graph and correlation coefficient say about assault rates by the mean, median, and standard deviation of assault in these two years. What does this comparison 4.96 (a) Make an Excel scatter plot of X = curb weight of cle and Y = vehicle miles ner gallon in city driving for tell you Assault relationship