Final answer:
To find the percentage of the maximum part life achieved, divide the average life of the parts by the maximum life and multiply by 100.
Step-by-step explanation:
To find the percentage of the maximum part life achieved, we need to calculate the average life of the 15 parts as a percentage of the maximum life. The average life of the 15 parts is 835.3 hours, and the maximum life is 1100 hours.
To calculate the percentage, we can use the formula: (average life / maximum life) * 100.
Substituting the values, we get: (835.3 / 1100) * 100.
Using a calculator, we find that the percentage is approximately 75.93%.