3 The number of defective items produced on an assembly line per day is counted for a random sample of 20 days. The results are in the following table: 21 16 99 11 10 13 12 11 25 10 1426 9 11 12 12 19...

Need to show all work such as calculator steps.

Extracted text: 3 The number of defective items produced on an assembly line per day is counted for a random sample of 20 days. The results are in the following table: 21 16 99 11 10 13 12 11 25 10 1426 9 11 12 12 19 11 9 e) Draw a Stem-and-Leaf Plot. f) Based on the Stem-and-Leaf Plot, is it reasonable to treat this sample as if it comes from arn approximately normal population? Briefly explain