Poly(3-hydroxybutyrate) (PHB), a semicrystalline polymer that is fullybiodegradable and biocompatible, is obtained from renewableresources. From a sustainability perspective, PHB offers many attractiveproperties though it is more expensive to produce than standardplastics. The accompanying data on melting point (C) for each of 12 specimens of the polymer using a differential scanning calorimeterappeared in the article "The Melting Behaviour of Poly (3- Hydroxybutyrate) by DSC. Reproduciblety Study" (Polymer Testing, 2013:215-220). 180.5 181.7 180.9 181.6 182.6 181.6 181.3 182.1 182.1 180.3 181.7 180.5 Compute the following:a. The sample range b. The sample variance s from the definition [Hint: First subtract180 from each observation.]c. The sample standard deviationd. s using the shortcut method
Poly(3-hydroxybutyrate) (PHB), a semicrystalline polymer that is fully
biodegradable and biocompatible, is obtained from renewable
resources. From a sustainability perspective, PHB offers many attractive
properties though it is more expensive to produce than standard
plastics. The accompanying data on melting point (C) for each of 12 specimens of the polymer using a differential scanning calorimeter
appeared in the article "The Melting Behaviour of Poly (3- Hydroxybutyrate) by DSC. Reproduciblety Study" (Polymer Testing, 2013:
215-220).
180.5 181.7 180.9 181.6 182.6 181.6
181.3 182.1 182.1 180.3 181.7 180.5
Compute the following:
a. The sample
b. The sample variance s from the definition [Hint: First subtract
180 from each observation.]
c. The sample standard deviation
d. s using the shortcut method
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