In Forming a 90% Confidence Interval for a Population Mean

question 58

True/False

In forming a 90% confidence interval for a population mean from a sample size of 22,the number of degrees of freedom from the t distribution equals 22.

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Definitions:

Surface Plate

A flat, rigid plate used as a reference plane for precision inspection, marking, and layout of materials in machining and quality control operations.

Primary Datum

A reference point, axis, or plane from which dimensions are measured or a baseline for the construction of geometric features in drawings.

Geometric Tolerances

The limits of allowable variation in the shape and size of a part's geometry, including its form, orientation, and location, specified in engineering drawings.

Straightness

A condition where an element or line maintains a consistent path without deviation, typically applied in manufacturing to ensure parts are within specified tolerances.