TABLE 8-3 A Quality Control Engineer Is Interested in the Mean Length

question 70

Short Answer

TABLE 8-3
A quality control engineer is interested in the mean length of sheet insulation being cut automatically by machine. The desired length of the insulation is 12 feet. It is known that the standard deviation in the cutting length is 0.15 feet. A sample of 70 cut sheets yields a mean length of 12.14 feet. This sample will be used to obtain a 99% confidence interval for the mean length cut by machine.
-Referring to Table 8-3, the critical value to use in obtaining the confidence interval is______

---

Definitions:

Patterns of Communication

Patterns of communication are the typical pathways and methods through which information is shared among members within an organization or social group.

Shadow Organisation

Informal networks within an organization that operate alongside the formal structure, often influencing decision-making processes.

Superior-Subordinate Relationships

These are the interactions and dynamics that exist between a higher-ranking individual or manager and their lower-ranking employees or team members within an organization.

Secretarial Services

Administrative services provided by a secretary or administrative assistant, including managing correspondence, scheduling, and various office tasks.