Five automobile engines are taken from the production line each hour and tested for their torque (in N · m) when rotating at a constant frequency. The measurements of the sample torques for 20 h of testing are as follows:

Plot the R chart.

Transcribed Image Text:

Hour 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Torques (in N-m) of Five Engines 366 352 354 360 362 370 374 356 358 357 361 360 368 363 352 356 350 362 366 365 372 367 359 354 348 366 361 372 370 363 365 366 361 370 362 354 363 360 361 364 361 358 356 364 364 368 366 368 358 360 355 360 359 362 353 365 364 357 367 370 360 364 372 358 365 348 360 352 360 354 358 364 362 372 361 360 361 371 366 346 354 359 358 366 366 362 361 357 363 358 372 362 367 366 367 373 364 360 360 365