Flexural strength is a measure of a material's ability to resist failure in bending. The accompanying data are on flexural strength of concrete (in MegaPascal, MPa, where 1 Pa (Pascal) = 1.45 ⨯ 10 −4...

(a) Construct a stem-and-leaf display of the data. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.)

Answer:

Stems	Leaves
5
6
7
8
9
10
11

What appears to be a representative strength value?
Answer:____________ MPa


Do the observations appear to be highly concentrated about the representative value or rather spread out?

(b) Does the display appear to be reasonably symmetric about a representative value, or would you describe its shape in some other way?






(c) Do there appear to be any outlying strength values?


(d) What proportion of strength observations in this sample exceed 10 MPa? (Round your answer to two decimal places.)

Answer:____________