A manufacturer suggests that the median time a rechargeable battery on an electric grass trimmer will last
Question:
A manufacturer suggests that the median time a rechargeable battery on an electric grass trimmer will last is 420 minutes. A random sample of 30 newly charged batteries shows that 11 lasted longer than 420 minutes. Is there enough evidence to reject the claim at α = 0.02?
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H 0 median 420 minutes claim H 1 median 42...View the full answer
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Related Book For 
Elementary Statistics A Step By Step Approach
ISBN: 9781259755330
10th Edition
Authors: Allan G. Bluman
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