A Sample of 30 Clock Radios Is Selected in Sequence

question 33

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. $$\begin{array} { l l l l l l l l l l } \mathrm { A } & \mathrm { A } & \mathrm { D } & \mathrm { A } & \mathrm { A } & \mathrm { A } & \mathrm { D } & \mathrm { A } & \mathrm { A } & \mathrm { D } \\\mathrm { A } & \mathrm { D } & \mathrm { A } & \mathrm { A } & \mathrm { A } & \mathrm { D } & \mathrm { A } & \mathrm { A } & \mathrm { A } & \mathrm { A } \\\mathrm { A } & \mathrm { A } & \mathrm { D } & \mathrm { D } & \mathrm { A } & \mathrm { A } & \mathrm { A } & \mathrm { A } & \mathrm { D } & \mathrm { A }\end{array}$$

---

Definitions:

Exit Strategy

A planned approach to exiting a business or investment, to secure maximum value.

Research And Analysis

A systematic investigation and study of materials, sources, etc., in order to establish facts and reach new conclusions, often used in various professional fields.

Growth

Achievement of a critical mass in the business, a point at which an adequate living is provided for the owner and family, with enough growth remaining to keep the business going.

Success-Disengagement Stage

A phase in the lifecycle of a business or career wherein achieving substantial accomplishments leads to reduced engagement or stepping away from active roles.