Statistics Homework Solutions 11

Statistics Homework Solutions 11 - 488.25/651. The area to...

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SUPPLEMENTARY EXERCISES FOR CHAPTER 1 11 17. (a) 0 2 4 10 15 20 25 30 50 0 0.05 0.1 0.15 0.2 0.25 Density Number of shares owned (b) The sample size is 651, so the median is approximated by the point at which the area to the left is 0.5 = 325.5/651. The area to the left of 3 is 295/651, and the area to the left of 4 is 382/651. The point at which the area to the left is 325.5/651 is 3 325 5 295 382 295 3 35. (c) The sample size is 651, so the first quartile is approximated by the point at which the area to the left is 0.25 = 162.75/651. The area to the left of 1 is 18/651, and the area to the left of 2 is 183/651. The point at which the area to the left is 162.75/651 is 1 162 75 18 183 18 1 88. (d) The sample size is 651, so the third quartile is approximated by the point at which the area to the left is 0.75 =
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Unformatted text preview: 488.25/651. The area to the left of 5 is 425/651, and the area to the left of 10 is 542/651. The point at which the area to the left is 488.25/651 is 5 10 5 488 25 425 542 425 7 70. 19. (a) 10 20 30 40 50 60 70 Load (kg) Sacaton Gila Plain Casa Grande (b) Each sample contains one outlier. (c) In the Sacaton boxplot, the median is about midway between the first and third quartiles, suggesting that the data between these quartiles are fairly symmetric. The upper whisker of the box is much longer than the lower whisker, and there is an outlier on the upper side. This indicates that the data as a whole are skewed to the right....
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This note was uploaded on 12/20/2011 for the course STA 3163 taught by Professor Mattgilg during the Fall '11 term at UNF.

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