When working properly, the amounts of cement that a filling machine puts into 25-kg bags have a
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When working properly, the amounts of cement that a filling machine puts into 25-kg bags have a standard deviation (σ) of 1.0 kg. In the next column are the weights recorded for thirty bags selected at random from a day’s production. Test H0: σ2 = 1 versus H1: σ2 >1 using the α =0.05 level of significance. Assume that the weights are normally distributed.
Use the following sums:
Transcribed Image Text:
26.18 24.22 24.22 25.30 26.4824.49 25.18 23.97 25.68 24.54 25.83 26.01 25.14 25.05 25.50 25.44 26.2425.84 24.49 25.46 26.09 25.01 25.0 25.21 25.12 24.7 26.04 25.67 25.27 25.23 0 30 30 Σ yi = 758.62 and Σ y-19.195.7938 is|
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Related Book For
Introduction To Mathematical Statistics And Its Applications
ISBN: 9780321693945
5th Edition
Authors: Richard J. Larsen, Morris L. Marx
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