Do a dot plot of the absorbency data using only the values

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According to the journal Chemical Engineering, an important property of a fiber is its water absorbency. A random sample of 20 pieces of cotton fiber was taken and the absorbency on each piece was measured. The following are the absorbency values:

18.71

21.41

20.72

21.81

19.29

22.43

20.17

23.71

19.44

20.5

18.92

20.33

23

22.85

19.25

21.77

22.11

19.77

18.04

21.12

 

(a) Calculate the sample mean and median for the above sample values.

(b) Compute the 10% trimmed mean.

(c) Do a dot plot of the absorbency data.

(d) Using only the values of the mean, median, and trimmed mean, do you have evidence of outliers in the data?

Reference no: EM13578865

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