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(d) s using the shortcut method

(d) s using the shortcut method

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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 an article. 180.6 181.7 180.9 181.7 182.7 181.7 181.4 182.1 182.1 180.2 181.8 180.4 Compute the following. (Round your answer to two decimal places.) (a) the sample range (in °C) 2.50 °C (b) the sample variance s? from the definition [Hint: First subtract 180 from each observation.] s2 = 0.58 (c) the sample standard deviation s = 0.76 (d) s? using the shortcut method s? =
Transcribed Image Text: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 an article. 180.6 181.7 180.9 181.7 182.7 181.7 181.4 182.1 182.1 180.2 181.8 180.4 Compute the following. (Round your answer to two decimal places.) (a) the sample range (in °C) 2.50 °C (b) the sample variance s? from the definition [Hint: First subtract 180 from each observation.] s2 = 0.58 (c) the sample standard deviation s = 0.76 (d) s? using the shortcut method s? =
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