A Sample of 30 Clock Radios Is Selected in Sequence

question 22

Essay

A sample of 30 clock radios is selected in sequence from an assembly line. Each radio is examined and judged to be acceptable (A)or defective (D). The results are shown below. Test for randomness. $\begin{array}{cccccccccc}\mathrm{A} & \mathrm{A} & \mathrm{D} & \mathrm{A} & \mathrm{A} & \mathrm{A} & \mathrm{D} & \mathrm{A} & \mathrm{A} & \mathrm{D} \\\mathrm{A} & \mathrm{D} & \mathrm{A} & \mathrm{A} & \mathrm{A} & \mathrm{D} & \mathrm{A} & \mathrm{A} & \mathrm{A} & \mathrm{A} \\\mathrm{A} & \mathrm{A} & \mathrm{D} & \mathrm{D} & \mathrm{A} & \mathrm{A} & \mathrm{A} & \mathrm{A} & \mathrm{D} & \mathrm{A}\end{array}$

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Definitions:

Real GDP

The measure of the value of all final goods and services produced within a country in a specified period, adjusted for inflation, reflecting the true economic health of a country.

Inflation

The upward trend in the average pricing of goods and services, narrowing the scope of purchasing capacity.

Economic Well-Being

A measure of how well individuals and societies are doing in terms of income, wealth, and material goods.

Military Expenditures

Funds allocated by a nation for the maintenance and operation of its armed forces, including the development, procurement, and support of military hardware and personnel.