The federal guideline for smog is 12% pollutants per 10,000volume of air. a metr

Question

The federal guideline for smog is 12% pollutants per 10,000volume of air. a metropolitan city is trying to bring its smoglevel into federal guidelines. The city comes up with a new policywhere city employees are to use city transportation to and fromwork. A local environmental group does not think the city is doingenough and that no real decrease in pollution will occur. Anindependent agency, hired by the city, conducts a test to determineif the city’s strategy lessens the smog rate and concludesthe P-value-0.055.

What is reasonable to conclude about the new strategy using a=0.05?

Explanation / Answer

   Since p -value is greater than a =0.05 ,      hence we cannot reject the null hypothesisthat the smog is still 12% ,     thus we can conclude that the new strategydoes not bring about a real decrease in pollution.

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