Every year the federal trade comission (FTC) must report tar and nicotine levels

Question

Every year the federal trade comission (FTC) must report tar and nicotine levels in cigarettes to congress. A random sample of 13 of the brands reported yielded the following regression analysis:

Simple linear regression results:

Nicotine (mg) = 0.21 + 0.06 Tar (mg)

Which of the following is true

A) For each 1 mg increase in the amount of tar in a cigarette, the amount of nicotine increases by 0.06 on average

B) For each 0.06 mg increase in the amount of tar in a cigarette, the amount of nicotine increases by about

C) For each additional 0.06 increase in the amount of nicotine in cigarettes, the amount of nicotine increases by 0.21 mg, on average

D)For each additional 0.06 mg increase in the amount of tar in cigarettes, the amount of nicotine increases by about 1 mg on average

Explanation / Answer

option c

c) For each additional 0.06 increase in the amount of nicotine in cigarettes, the amount of nicotine increases by 0.21 mg, on average

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