Twelve sheep were fed a special diet consisting of dried grass and barley for three months....

Twelve sheep were fed a special diet consisting of dried grass and barley for three months. At the end of the period the plasma insulin concentration (??/??) was determined for each sheep. The data are: 20.5 26.2 18.8 21.2 22.1 21.2 25.4 26.8 22.9 22.8 30.8 28.4

a) Find the mean, median and mode.

b)Find the first and third quartiles.

c) Find the range, variance and standard deviation.

d) Find the 40th percentile ?40.

e) Find the percentile rank of 25.4.

f) Find the interquartile range (???). What does the ??? explain about the distribution of the plasma insulin concentration of the twelve sheep?

g) Identify the outliers if there are any?

h) Construct the box-plot for the data set and comment on the shape of the distribution of the data.

Solutions

Expert Solution

(h) the box plot of the given data is as below:

milcah answered 8 months ago

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