Three shifts run continuously at a local beverage manufacturing plant. Each shift is expected to meet production goals of cases per hour. If the plant is running at 100% efficiency, each shift can produce 486 cases per hour. At a more realistic rate, it is expected that each shift meet the goal of 340 cases per hour. Below is the data for shift 2 for the month of May. 374 355 349 376 404 362 390 368 350 340 378 359 335 334 382 392 320 372 294 286 383 363
Identify the random variable along with the measurement scale.
Is there evidence to support the claim that the shift exceeded minimal expectations?