Poly(3-hydroxybutyrate) (PHB), a semicrystalline polymer that isfully biodegradable and biocompatible, is obtained from renewableresources. From a sustainability perspective, PHB offers manyattractive properties though it is more expensive to produce thanstandard plastics. The accompanying data on melting point (°C) foreach of 12 specimens of the polymer using a differential scanningcalorimeter appeared in an article.
180.6 181.7 180.8 181.5 182.6 181.6 181.2 182.1 182.2 180.4181.8 180.4
Compute the following. (Round your answers to two decimalplaces.)
(a) the sample range
(b) the sample variance s^2 from the definition [Hint: Firstsubtract 180 from each observation.]
(c) the sample standard deviation
(d) s^2 using the shortcut method
