# Question: Let each subgroup consist of the 6 values within a

Let each subgroup consist of the 6 values within a year. Construct an x chart and determine whether the process mean is within statistical control. If it is not, identify which of the three out-of-control criteria lead to rejection of a statistically stable mean.

Refer to the amounts of energy consumed in the authorâ€™s home. Each value represents energy consumed (kWh) in a two-month period. Let each subgroup consist of the six amounts within the same year.

Refer to the amounts of energy consumed in the authorâ€™s home. Each value represents energy consumed (kWh) in a two-month period. Let each subgroup consist of the six amounts within the same year.

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