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  3. poly(3-hydroxybutyrate) (phb), a semicrystalline p

Poly(3-hydroxybutyrate) (PHB), a semicrystalline polymer that is fully biodegradable and biocompatible, is obtained from renewable resources. From...

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Basic Math

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.

180.6181.8180.9181.7182.6181.5
181.3182.1182.1180.4181.8

180.6

b) the sample variance s2 from thedefinition [Hint: First subtract 180 from eachobservation.]

c)the sample standard deviation

d)s2 using the shortcut method

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