Traffic Engineers Compared Rates of Traffic Collisions at Intersections with Raised

question 4

True/False

Traffic engineers compared rates of traffic collisions at intersections with raised medians and rates at intersections with two-way left-turn lanes. They found that out of 4,512 collisions at intersections With raised medians, 2,202 were rear-end collisions, and out of 4,277 collisions at two-way left-turn Lanes, 1,903 were rear-end collisions.
Assuming these to be random samples of collisions from the two types of intersections, construct a 95% Confidence interval for the difference between the proportions of collisions that are of the rear-end Type at the two types of intersection. Does the confidence interval contradict the claim that the Proportion of rear-end collisions is the same at both types of intersection?

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Definitions:

Operant Conditioning

A teaching mechanism in which behavior is changed by applying incentives or consequences.

Classical Conditioning

Gaining understanding through the relationship between an environmental cue and an inherently present stimulus.

Operant Conditioning

A method of training in which the vigor of an action is influenced by rewards or sanctions.

Self-Defeating

Behaviors or thought patterns that undermine one's success or well-being, often occurring despite the individual's awareness of their detrimental effects.