Consider the loan processing cycle time data in Exercise 8 15 Set up an EWMA control chart for monitoring this process using iuml not iuml 0 1 Does the process seem to be in statistical control x iuml raquo p50 iuml frac12 18 05 p84 iuml frac12 20 53 iuml sup3 iuml iuml frac12 p84 iuml shy p50 iuml frac12 20 53 iuml shy 18 05 iuml frac12 24 8 From 8 15 TABLE 8E 3 Cycle Time Data for Exercise 8 15 163 163 19 3 15 1 22 2 19 1 18 5 18 3 8 7 20 2 22 0 14 7 18 0 18 9 19 1 10 6 8 19 6 20 8 16 5 193 14 6 17 8 15 6 22 5 17 6 17 2 20 9 14 8 18 2 164 18 2 194 14 1 164 19 6 17 5 17 1 21 7 20 8

Question: Consider the loan processing cycle time data in Exercise 8.15. Set up an EWMA control chart for monitoring this process using ï¬ï = 0.1. Does

Consider the loan processing cycle time data in Exercise 8.15. Set up an EWMA control chart for monitoring this process using ï¬ï€ = 0.1. Does the process seem to be in statistical control?

x ï‚»p50 ï€½18.05; p84 ï€½20.53; ï³ï€ ï€½p84 ï€p50 ï€½20.53ï€18.05ï€½24.8

From 8.15: TABLE 8E.3 Cycle Time Data for Exercise 8.15 163 163 19.3 15.1 22.2 19.1 18.5 18.3 8.7 20.2 22.0 14.7 18.0 18.9 19.1 10.6 8 19.6 20.8 16.5 193 14.6 17.8 15.6 22.5 17.6 17.2 20.9 14.8 18.2 164 18.2 194 14.1 164 19.6 17.5 17.1 21.7 20.8

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