How Many Standard Errors in Width Is the 95% Confidence

question 16

Multiple Choice

How many standard errors in width is the 95% confidence interval for a sample with 20 values?

• A) 1.73
• B) 2.09
• C) 3.46
• D) 4.18

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Definitions:

Refractometer

An optical instrument that measures the refraction, or bending, of light as it passes through a liquid.

Specific Gravity

The ratio of the density of a substance to the density of a reference substance; commonly used in various scientific fields to characterize the physical properties of fluids.

Specimen

A sample of tissue, blood, urine, or other material from the body used for analysis and diagnosis.

Urine Color

The hue or shade of urine, which can vary based on hydration levels, the presence of certain substances, or health conditions.