It is claimed that an automobile is driven on the average more than 20,000 kilometers per year.
Question:
It is claimed that an automobile is driven on the average more than 20,000 kilometers per year. To test this claim a random sample of 100 automobile owners are asked to keep a record of the kilometers they travel. Would you agree with this claim if the random sample showed an average of 23,500 kilometers and a standard deviation of 3900 kilometers? Use a P-value in your conclusion.
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The hypotheses are Ho 20000 kilo...View the full answer
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Related Book For 
Probability & Statistics For Engineers & Scientists
ISBN: 9780130415295
7th Edition
Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying
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