A machine that puts corn flakes into boxes is adjusted to put an average of 15 ounces
Question:
A machine that puts corn flakes into boxes is adjusted to put an average of 15 ounces into each box, with standard deviation of 0.25 ounce. If a random sample of 12 boxes gave a sample standard deviation of 0.38 ounce, do these data support the claim that the variance has increased and the machine needs to be brought back into adjustment?
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Chisquare for testing 2 i a 001 H 0 2 00625 H 1 2 0062...View the full answer
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Related Book For 
Understandable Statistics Concepts And Methods
ISBN: 9781337119917
12th Edition
Authors: Charles Henry Brase, Corrinne Pellillo Brase
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