A large department store wants to test whether the variance of waiting time in two checkout counters
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A large department store wants to test whether the variance of waiting time in two checkout counters is approximately equal. Two independent random samples of 25 waiting times in each of the counters gives s1 = 2.5 minutes and s2 = 3.1 minutes. Carry out the test of equality of variances, using α = 0.02.
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Related Book For
Complete Business Statistics
ISBN: 9780077239695
7th Edition
Authors: Amir Aczel, Jayavel Sounderpandian
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