Question

Energy Surplus makes low-cost energy drinks, and they wanted to monitor their caffeine content (mg) per bottle. They observed three separate bottles from 5 different batches to see if they were hitting their target of 35 mg per bottle. Given the data set below, would the X Bar Chart be in or out of control? (Round answers to, two decimals)

Bottle 2 Batch Bottle 1 Bottle 3 34.96 35.22 35.51 1 2 34.17 33.64 32.74 34.93 33.87 34.49 3 34.17 36.60 33.74 4 5 34.28 35.37 36.54

a.Out of Control

b. In Control

Answer 1

In control

Step-by-step explanation:

Mean of bottle 1=(34.96+34.17+34.93+34.17+34.28)/5=34.502

Mean of bottle 2=(35.22+33.64+33.87+33.74+35.37)/5=34.368

Mean of bottle 3=(35.51+32.74+34.49+36.60+36.54)/5=35.18

X double bar=(34.502+34.368+35.176)/3=34.68