Final answer:
The question requires calculations of failure rate and mean time to failure for a resistor, which cannot be done without specific models or data. The failure rate likely increases with temperature.
Step-by-step explanation:
The question is asking to calculate the failure rate and the mean time to failure (MTTF) for a fixed film resistor used in a car audio amplifier. Unfortunately, without a specific failure rate model or empirical data, we cannot accurately calculate these values. Typically, the failure rate and MTTF would be determined by manufacturer data, experimental testing, or reliability prediction models, often based on the Arrhenius equation which relates the failure rate to temperature.
For educational purposes, if we had a failure rate (lambda) based on temperature and quality factor 'P', we could calculate MTTF as the inverse of the failure rate (1/lambda). However, since specific values or models are not provided in the information, we are unable to complete the calculations. In general, the failure rate would likely increase with operating temperature due to the acceleration of wear-out mechanisms.