In order to find out the average hemoglobin (Hb) level in children with chronic diarrhea, a random sample of 10 children with chronic diarrhea is selected from a city and their Hb levels (g/dL) are obtained as follows:

Assuming that the data may be looked upon as a random sample from a normal population, construct a 99% confidence interval for the actual average Hb level in children with chronic diarrhea for this city and interpret. Draw a box plot and normal plot for this data, and comment.

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