Midterm 240a 09 key - Nov 3 2009 Answer All Five Questions...

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Nov. 3, 2009 ECON 240A- 1 L. Phillips Midterm Answer All Five Questions. 1. (15 min.) This is data about some characteristics of American football players at all player positions, obtained from a JMP data file. The first figure is a stem and leaf diagram of bench press weight in pounds for the 115 players who reported this variable out of 130 total players. Bench pressing is a form of weight lifting where you lie prone on your back on a bench and lift, i.e. press, weights. Figure 1.1:Stem & Leaf Display, Bench press weight in pounds for 115 football players Stems Leaves 17 ->0 18 19 ->0 20 ->0 21 ->00 22 ->000000 23 ->000 24 ->0000000 25 ->00055 26 ->000000555555555 27 ->000055 28 ->55555 29 ->04566 30 ->00000 31 ->000055 32 ->000005 33 ->0000008 34 ->0000 35 ->00025555 36 ->0 37 ->055555 38 ->0005 39 40 ->00001 41 42 ->001 43 44 ->0
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Nov. 3, 2009 ECON 240A- 2 L. Phillips Midterm a. What is the minimum weight pressed? _ 170 _ pounds_____ (It was a wide receiver) b. What is the maximum weight pressed? _ 440 pounds __________ (it was a defensive lineman) c. What is the range? __ 270 pounds, i.e 170-440 _________ d. What is the median? Middle observation is 57 th , _ 296 pounds __________ e. What is the most likely or modal bench press weight reported? 265 pounds _______ 2. (15 min) Three views of three variables from the JMP football player data set are presented in the spinning plot format. Height is player height in inches, weight is player weight in pounds, and bench is the weight in pounds the player can bench press.. Figure 2.1: A three dimensional view of the three variables
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Nov. 3, 2009 ECON 240A- 3 L. Phillips Midterm Figure 2.2:A View of Weight Versus Height with the Bench Axis Coming Towards the Viewer Figure 2.3: A View Of Bench Versus Weight with the Height Axis Coming Towards the Viewer
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Nov. 3, 2009 ECON 240A- 4 L. Phillips Midterm a.
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  • Fall '08
  • Staff
  • Per capita income, powerlifting, Bench press, L. Phillips

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