The accompanying table gives sample means and standard deviations, each based on n 6 observations of the refractive index of fiber optic cable Construct a control chart, and comment on its appearance x Igrave i 2317 07 and si 30 34 Day r 95 471 30 2 97 38 88 3 96 85 1 43 96 64 1 59 5 96 87 1 52 96 52 1 27 7 96 08 16 8 96 48 79 96 63 1 48 96 50 80 1 97 22 1 42 12 96 55 65 Day r 13 97 02 1 28 14 95 55 1 14 15 96 29 37 16 96 80 1 40 7 96 0 58 18 95 3998 19 96 58 1 21 20 96 43 75 21 97 06 34 22 98 341 60 23 96 42 1 22 24 95 99 1 18 10

Question: The accompanying table gives sample means and standard deviations, each based on n = 6 observations of the refractive index of fiber-optic cable. Construct a

The accompanying table gives sample means and standard deviations, each based on n = 6 observations of the refractive index of fiber-optic cable. Construct a control chart, and comment on its appearance. ˆ‘xÌ…i = 2317.07 and ˆ‘si = 30.34.

Day r 95.471.30 2 97.38 88 3 96.85 1.43 96.64 1.59 5 96.87 1.52 96.52 1.27 7 96.08 16 8 96.48 .79 96.63 1.48 96.50 .80 1 97.22 1.42 12 96.55 .65 Day r 13 97.02 1.28 14 95.55 1.14 15 96.29 .37 16 96.80 1.40 7 96.0 .58 18 95.3998 19 96.58 1.21 20 96.43.75 21 97.06 34 22 98.341.60 23 96.42 1.22 24 95.99 1.18 10

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