In Developing an Interval Estimate for a Population Mean,a Sample $\pm$

question 85

Multiple Choice

In developing an interval estimate for a population mean,a sample of 50 observations was used.The interval estimate was 19.76 $\pm$ 1.32.Had the sample size been 200 instead of 50,the interval estimate would have been:

• A) 19.76\(\pm\) .33
• B) 19.76 \(\pm\) .66
• C) 19.76 \(\pm\) 5.28
• D) None of these choices.

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Definitions:

Blood Supply

The total volume of blood circulating within the body or provided to a particular organ or tissue.

Arterioles

Small branches of arteries that lead to capillaries, controlling blood flow and pressure via constriction and dilation.

Arteries

Blood vessels that carry oxygenated blood away from the heart to various parts of the body.

Potassium Ions

Charged particles formed from potassium atoms, essential for various bodily functions including nerve transmission and muscle contraction.