10 29 The quality control department of a motorcycle company classifies new motorcycles according to...
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10 29 The quality control department of a motorcycle company classifies new motorcycles according to the number of defective components per motorcycle at an initial inspection An improvement to the production process has been implemented and hopefully there will be a change from the historical defective distribution 7 80 72 10 773 05 74 03 and 5 02 A random sample of 300 motorcycles produced under the new system is classified as follows Number of Defectives Number of Motorcycles n 0 238 1 32 2 12 3 13 4 or more 5 Total 300 At the ax 05 level does there appear to be a change in the historical proportions of defectives
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