Determine the variance of the measurement data obtained in the two laboratories. B. Is there any significant difference between these variances?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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The titanium content of steel is determined in two laboratories by means of atomic absorption
spectrometry. The following data were obtained:

Lab 1 0.470 0.484 0.463 0.449 0.482 0.454 0.477 0.409
Lab 2 0.529 0.490 0.489 0.512 0.486 0.502 - -

A. Determine the variance of the measurement data obtained in the two laboratories.
B. Is there any significant difference between these variances?

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