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Write the difference between Type I and Type II errors. The mean life time of a sample of 400 uorescent light bulbs produced by a
Write the difference between Type I and Type II errors. The mean life time of a sample of 400 uorescent light bulbs produced by a company is found to be 1600 hours with a standard deviation of 150 hours. Test the hypothesis that the mean life time of the bulbs produced in general is higher than the mean life of 1570 hours at or = 0.01 level of significance
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