Instruction 3-4 The Ordered Array Below Represents the Number of Cargo Manifests

Short Answer

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 first quartile of the customs data is _____________ .