please help with a 3 questions.

The fill size for a small bag of peanuts distributed by a popular airline is 50 grams. The producer wishes to set up a set of control charts for this process and collects the data shown in the table. What are the upper and lower control limits of their R- chart? Sample 1 2 3 4 5 6 7 8 Item 11 54.5 50.6 51.1 527 51.7 51.1 540 53.2 51.9 Item 12 543 53,5 543 521 512 51.5 523 504 502 Item 13 53.8 53.2 504 513 547 54.7 547 53.4 502 Item 14 504 549 507 51.0 54.3 504 51.4 51.4 529 Sum 213.0 212.3 206.6 2072 211.8 207.7 2124 208.4 205.1 DO leo la OA) 7.22, 0.22 B) 7.79, 0.00 C) 6.77, 0.42 D) 6.22, 0.62 Question 3 (1.5 points) Saved Employee training and equipment maintenance are examples of internal failure costs external failure costs prevention costs appraisal costs