A Previous Analysis of Paper Boxes Showed That the The Standard

question 76

Multiple Choice

A previous analysis of paper boxes showed that the the standard deviation of their lengths is 7 millimeters. A pakcer wishes to find the 90% confidence interval for the average length of a box. How
Many boxes does he need to measure to be accurate within 3 millimeters?

• A) 6
• B) 21
• C) 15
• D) 9

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Definitions:

Learn Languages

The process through which individuals acquire the ability to comprehend and communicate in languages other than their native language.

Cognitive Development

Refers to the progression of learning and acquisition of problem-solving abilities, including thinking, perceiving, and reasoning, as a person grows and matures.

Social Context

The environmental and cultural setting in which a person lives or operates, and which influences their behaviors, attitudes, and experiences.

Speech Function

The utilization of verbal communication for expressing ideas, emotions, and desires through structured vocal sounds.