Consider the following observations on shear strength (MPa) of ajoint bonded in a particular manner 22.2 40.4 16.4 73.7 36.6 109.9
30.0 4.4 33.1 66.7 81.5
a. What are the values of the fourths, and what is the valueof fs ?
b. Construct a boxplot based on the five-number summary, and comment on its features.
c. How large or small does an observation haveto be to qualify as an outlier? As an extreme outlier?
d. By how much could the largest observation bedecreased without affecting fs?