29. You are responsible for manufacturing the hinges used on the doors of Airbus A330 airplane. Since a close fit is required to ensure the doors stay airtight, statistical quality control is used to ensure the consistent high quality of the hinges. The data from five of yesterdays' samples are shown below. Sample 1 0.351 0.347 0.351 0.349 0.354 Observation 2 3 0.356 0.348 0.345 0.353 0.357 0.342 0.348 0.355 0.351 0.361 4 0.349 0.349 0.35 0.354 0.349 5 What is the average range or CL for R (Choose closest answer)? a. Less than or equal to 0.015 b. Greater than 0.015 but less than or equal to 0.020 c. Greater than 0.020 but less than or equal to 0.030 d. Greater than 0.030