Nocaf Drinks, Inc., a producer of decaffeinated coffee, bottles Nocaf. Each bottle should have a net weight of 4 ounces. The machine that fills the bottles with coffee is new, and the operations manager wants to make sure that it is properly adjusted. The operations manager takes a sample of n = 8 bottles and records the average and range in ounces for each sample. The data for several samples are given in the following table. Note that every sample consists of 8 bottles. SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE RANGE AVERAGE SAMPLE RANGE AVERAGE A 0.41 4.00 E 0.56 4.17 B 0.55 4.16 0.62 3.93 C 0.44 3.99 G 0.54 3.98 0.48 4.00 H 0.44 4.01 Is the machine properly adjusted and in control?

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Nocaf Drinks, Inc., a producer of decaffeinated coffee, bottles Nocaf. Each bottle should have a net
weight of 4 ounces. The machine that fills the bottles with coffee is new, and the operations manager
wants to make sure that it is properly adjusted. The operations manager takes a sample of n = 8 bottles
and records the average and range in ounces for each sample. The data for several samples are given in
the following table. Note that every sample consists of 8 bottles.
SAMPLE
SAMPLE
SAMPLE
SAMPLE
SAMPLE
RANGE
AVERAGE
SAMPLE
RANGE
AVERAGE
0.41
4.00
E
0.56
4.17
B
0.55
4.16
F
0.62
3.93
0.44
3.99
0.54
3.98
0.48
4.00
H
0.44
4.01
Is the machine properly adjusted and in control?
Transcribed Image Text:Nocaf Drinks, Inc., a producer of decaffeinated coffee, bottles Nocaf. Each bottle should have a net weight of 4 ounces. The machine that fills the bottles with coffee is new, and the operations manager wants to make sure that it is properly adjusted. The operations manager takes a sample of n = 8 bottles and records the average and range in ounces for each sample. The data for several samples are given in the following table. Note that every sample consists of 8 bottles. SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE RANGE AVERAGE SAMPLE RANGE AVERAGE 0.41 4.00 E 0.56 4.17 B 0.55 4.16 F 0.62 3.93 0.44 3.99 0.54 3.98 0.48 4.00 H 0.44 4.01 Is the machine properly adjusted and in control?
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