Answer to Question #124452 in Statistics and Probability for Abubakar36

Question

A random sample of 8 cigarettes of a certain brand

Answer 1

let the average nicotine content be 4.2 milligrams and a standard deviation - sd=1.4 milligrams.

H₀ : μ=3.5 against H₁ : μ>3.5

T=(X-μ)/(sd/$\sqrt n$) =1.414

table value for 1% significance and df=6 equals to 3.143>1.414, so we accept H₀