Question: Problem 2. [30 points] Let's assume we have a batch of 20 light bulbs, and each bulb is designed to work for 50 hours. We

Problem 2. [30 points] Let's assume we have a batch of 20 light bulbs, and each bulb is designed to work for 50 hours. We observe their lifetimes and note the following: By the end of 10 hours, 5 light bulbs have failed. By the end of 15 hours, an additional 3 bulbs have failed. Based on this information, answer the following: (a) What is the percentage of failures? (b) What is the number of failures per unit hour? (c) What is the MTBF (Mean Time Between Failures)?

Problem 2. [30 points] Let's assume we have a batch of 20 light bulbs, and each bulb is designed to work for 50 hours. We observe their lifetimes and note the following: - By the end of 10 hours, 5 light bulbs have failed. - By the end of 15 hours, an additional 3 bulbs have failed. Based on this information, answer the following: (a) What is the percentage of failures? (b) What is the number of failures per unit hour? (c) What is the MTBF (Mean Time Between Failures)

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