Question

Four samples ​(k=4​) are taken from a​ process, with each sample consisting of six observations ​(n=6​).The length in centimeters of each sampled item was​ measured, with the following results. Develop an x chart to determine whether the process is stable or not. LOADING... Click the icon to view the samples data. Click the icon to view the values of theUpper A2 constants. The upper control limit is___ ​(Enter your response rounded to two decimal​ places.)

Sample	Obs1	Obs2	Obs3	Obs4	Obs5	Obs6
1	24.11	24.32	25.37	25.76	24.58	25.14
2	24.44	24.11	25.21	25.66	26.37	25.11
3	24.75	25.29	25.17	25.26	23.53	24.96
4	24.85	25.69	24.53	25.23	23.53	25.51

n	Upper A 2A2
2	1.880
3	1.023
4	0.729
5	0.577
6	0.483

Answer 1

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