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Unformatted text preview: assembly line. The sample is the portion of items that are randomly selected and tested for defectiveness. The statistical inference to be made from this problem is the percentage of items that may be defective off the assembly line. 4 & 5. 6. Daymanuel Sampson September 9, 2011 Homework #1 (a) (b) Using Minitab, I calculated the 75 th percentile of lengths 1, 2 and 3 are 32.7, 36 and 39.7, respectively. (c) [attached] The distribution of the graph appears to be skewed to the right. (d) (e) [attached] Daymanuel Sampson September 9, 2011 Homework #1 7. [attached] Looking at the comparison between “old” and “new,” it is easy to see that their centers lie in two different areas. The “new” appears to be more spread out in terms of data and may be symmetric. The “old” however may be skewed to the right and has a smaller spread of figures....
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This note was uploaded on 10/06/2011 for the course STATISTICS 36-220 taught by Professor Annlee during the Spring '11 term at Carnegie Mellon.
- Spring '11