The weight of plastic pellets for an injection pellets is selected and gives the following weights (in grams): 15 13 18 16 18 17 66312 12222 11 14 11 19 13 12 204640 12 10 14 16 14 Based on the sample data: (A) The sample average = A two-sided 95% natural tolerance limits that contain at least 90% of the population are: (B) Lower tolerance limit= (C) Upper tolerance limit=

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