A Recent Gallup Poll Interviewed a Random Sample of 1523

question 3

Multiple Choice

A recent Gallup Poll interviewed a random sample of 1523 adults. Of these, 868 bought a lottery ticket in the past year.
A 95% confidence interval for the proportion of all adults who bought a lottery ticket in the past year is (assume Gallup used a simple random sample)

• A) 0.57 ± 0.00016.
• B) 0.57 ± 0.00032.
• C) 0.57 ± 0.013.
• D) 0.57 ± 0.025.
• E) 0.57 ± 0.03.

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Definitions:

Blood-Typing Chart

A blood-typing chart is a tool used to identify an individual's blood type based on the presence or absence of certain antigens on the surface of red blood cells.

Anti-Rh Sera

Antibodies used to prevent Rh sensitization in individuals who are Rh-negative, often given to Rh-negative mothers who may carry Rh-positive children.

Blood-Typing Chart

A reference that shows the compatibility between different blood types, used in transfusions to prevent adverse reactions.

Agglutination

The clumping together of particles, typically referring to the clumping of blood cells in response to an antibody, used in blood typing and in diagnosing infections.