1. **Stating the problem:** We have a factory producing 2000 pipes daily: 1200 from Machine A and 800 from Machine B. A pipe is unacceptable if its length error exceeds 9.5 mm. 2. **Understanding the problem:** We want to analyze or calculate something related to the unacceptable pipes based on the given data. 3. **Given data:** - Total pipes produced daily: 2000 - Pipes from Machine A: 1200 - Pipes from Machine B: 800 - Unacceptable if error > 9.5 mm 4. **Next steps:** Since no probabilities or error distributions are given, we cannot calculate exact numbers of unacceptable pipes. 5. **Conclusion:** With the current information, we can only state the production numbers and the criterion for unacceptability. If you want to find probabilities or expected numbers of unacceptable pipes, please provide error distribution or probabilities for each machine.