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Seat Work Note: show your solution in piece/s of paper/s. Try to solve the following problems on Hypothesis Testing: 1. An electrical firm manufactures light

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Seat Work Note: show your solution in piece/s of paper/s. Try to solve the following problems on Hypothesis Testing: 1. An electrical firm manufactures light bulbs that have a lifetime that is approximately normally distributed with a mean of 800 hours. Test the hypothesis that u = 800 hours against the alternative, u

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