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Instruction 3-4
The ordered array below represents the number of cargo manifests approved by customs inspectors at the Port
of Brisbane in a sample of 35 days.
16,17,18,18,19,20,20,21,21,21,22,22,22,22,23,23,23,23,24,24,24,25,25,26,26,26,27,28,28,29,29,31,31,32,32
Note: For this sample,the sum of the observations is 838,the sum of the squares of the observations is 20,684,
and the sum of the squared differences between each observation and the mean is 619.89.
-Referring to Instruction 3-4,the third quartile of the customs data is ________.
Control Group
In experimental research, the group that does not receive the treatment or intervention being tested, serving as a baseline for comparison.
Clinical Study
A research investigation conducted with human participants to evaluate the efficacy and safety of medical, surgical, or behavioral interventions.
Replicability
The scientific requirement that other researchers be able to use the same procedures as an initial investigator did and obtain the same results.
Experimentation
The process of conducting tests or trials in a controlled environment to discover, prove, or examine the validity of hypotheses or the effect of variables.
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