Is the new formula more effective than the old

Reference no: EM131408792

Twelve family pets have been randomly placed into two groups. Group 1 receives the standard version of a flea powder, while group 2 receives a modified formula.

Four days following treatment, researchers count the number of fleas collected from each pet during a 2-minute period. The results are shown below. At the 0.025 level, is the new formula more effective than the old?

Number of fleas after old formula:
17	16	17	4	8	15
Number of fleas after new formula:
6	1	1	2	7	5

Reference no: EM131408792

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