Question: 1 2 3 Sample-1 Sample-2 Sample-3 Sample-4 Sample-5 Sample-6 Sample-7 Sample-8 45 49 52 49 45 44 53 48 53 47 55 51 39 56

1 2 3 Sample-1 Sample-2 Sample-3 Sample-4

1 2 3 Sample-1 Sample-2 Sample-3 Sample-4 Sample-5 Sample-6 Sample-7 Sample-8 45 49 52 49 45 44 53 48 53 47 55 51 39 56 46 41 45 60 52 44 59 44 45 53 41 49 44 61 44 49 57 57 59 65 49 45 49 56 56 57 49 56 47 46 47 48 43 48 55 4 42 5 6 7 45 Consider the above past data from a production line (n=7). Fill in the blank cells (in grey color) by assigning any two digit numbers between 50sxs 65. a) Draw X and R charts. (60) b) is the process under control? (10) c) Is there any assignable cause? d) If any, which samples indicate that the process is out of control? (10) e) Estimate the population mean and population standart devialton. (20)

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