An Airport Security Officer Manually Searched Carry-On Bags of People

question 67

Essay

An airport security officer manually searched carry-on bags of people boarding a plane in the sequence shown,
where S represents a searched bag and N represents a bag not searched. Find the test statistic z to test for
randomness. $\begin{array}{lllllllll}\mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{S} & \mathrm{N} & \mathrm{N} & \mathrm{S}& \mathrm{S} \\ \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{S} & \mathrm{N} & \mathrm{N} \\\mathrm{N} & \mathrm{N} & \mathrm{S} & \mathrm{S} & \mathrm{S} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{S}& \mathrm{N} \\\mathrm{N} & \mathrm{S} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{S} & \mathrm{S}& \mathrm{N} & \mathrm{N}\\\mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{N} & \mathrm{S} & \mathrm{N} & \mathrm{N} & \mathrm{N} \end{array}$

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Definitions:

JIT

Just-In-Time is a management strategy that aligns raw-material orders from suppliers directly with production schedules, aiming to minimize inventory costs and increase efficiency.

Suppliers

Entities that provide goods or services to another company as part of a supply chain, often contributing to the production or distribution process.