A quality control analyst at a water bottling company monitors the amount of water filled in the bottle.  The analyst took four batches of water bottles at different times of the day and recorded the average amount filled.  Use the data set below to create an xbar chart to check if the water filling process is in control.  Discuss why or why not the water filling process is in control. time period batch 1 batch 2 batch 3 batch 4 1 20.4 19.8 19.3 21.0 2 20.0 19.2 21.2 19.5 3 20.1 21.1 19.8 20.9 4 19.9 21.0 20.0 20.5 5 19.0 21.1 20.6 21.8 6 20.0 20.3 20.1 19.0

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 8PPS
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A quality control analyst at a water bottling company monitors the amount of water filled in the bottle.  The analyst took four batches of water bottles at different times of the day and recorded the average amount filled.  Use the data set below to create an xbar chart to check if the water filling process is in control.  Discuss why or why not the water filling process is in control.

time period batch 1 batch 2 batch 3 batch 4
1 20.4 19.8 19.3 21.0
2 20.0 19.2 21.2 19.5
3 20.1 21.1 19.8 20.9
4 19.9 21.0 20.0 20.5
5 19.0 21.1 20.6 21.8
6 20.0 20.3 20.1 19.0
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