A light-bulb manufacturer advertises that the average life for its light bulbs 900 hours. A random sample of 10 of its light bulbs resulted in the following lives in hours.995 595 512  839 739 917 871 755, 918, 729At the 10% significance level, test the claim that the sample comes from a population with half life of 900 hours. Use the P value method to test hypothese

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