Finding number of traffic accidents after modification

Reference no: EM1311940

Q1) Number of minor automobile accidents happen at different high-risk intersections in Teton County despite traffic lights. Traffic Department claims that modification in type of light will decrease these accidents. County commissioners have agreed to proposed experiment. Eight intersections were selected at random, and lights at those intersections were customized. Numbers of minor accidents in a 6-month period before and after modifications were:

Â	Number of Accidents
Â	A	B	C	D	E	F	G	H
Before modification	5	7	6	4	8	9	8	10
After modification	3	7	7	0	4	6	8	2

At.01 significance level is it sensible to conclude that modification decreased the number of traffic accidents?

Reference no: EM1311940

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