Which of the Following Is True of Calculating Confidence Intervals

question 4

Multiple Choice

Which of the following is true of calculating confidence intervals for larger samples?

• A) For larger samples, the t-distribution is indistinguishable from the standard normal distribution.
• B) For larger samples, both the t-distribution and the standard normal distribution require standard deviation values to be calculated.
• C) For larger samples, the degrees of freedom cannot be calculated accurately.
• D) For larger samples, only z-values provide a true sampling distribution of the mean.

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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.