Suppose That You Wish to Estimate a Population Proportion and Want

question 33

True/False

Suppose that you wish to estimate a population proportion and want to determine a sample size that will ensure a given margin of error for a $95 \%$ confidence interval. Suppose further that an educated guess is not available for $\hat { \mathrm { p } }$ and that $0.25$ is used for the value of $\hat { \mathrm { p } } ( 1 - \hat { \mathrm { p } } )$ when determining the sample size. True or false, if the observed value of $\hat { \mathrm { p } }$ is not equal to $0.5$ , then the sample size will be larger than necessary?

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Definitions:

Inferior Vena Cava

The inferior vena cava is a large vein that carries deoxygenated blood from the lower and middle parts of the body back to the right atrium of the heart.

Lumbar Veins

Veins located in the lumbar region that drain blood from the lower back and abdominal wall into the inferior vena cava.

Hepatic Veins

Large veins that carry deoxygenated blood from the liver back to the heart.

Lower Limbs

The parts of the body extending from the hip to the toes, including the thigh, leg, and foot.