Two methods, A and B, for controlling traffic were

Chapter 15, Problem 16E

(choose chapter or problem)

Two methods, A and B, for controlling traffic were employed at each of $n=12$ intersections

for a period of 1 week. The numbers of accidents occurring during this time period are recorded

in the following table. The order of use (which method was employed for the first week) was randomly chosen for each intersection.

a Analyze these data using the sign test.

b Analyze these data using the Wilcoxon signed-rank test for a matched-pairs experiment.

Equation transcription:

$n=12$

Text transcription:

n=12

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