When working properly, the amounts of cement that a filling machine puts into 25-kg bags have a
Question:
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:
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Test H 0 2 1 versus H 1 2 1 The sample variance is ...View the full answer
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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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