Fish oil and blood pressure

Assignment Help Basic Statistics
Reference no: EM131011983

1. Fish Oil and Blood Pressure. Find the 95% confidence interval and one-sided p-value asked for in Exercise 13(e) and (g) but use a statistical computer package to do so.

2. Auto  Exhaust  and  Lead  Concentration  in  Blood.  Researchers  took  independent  random samples  from  two  populations  of police  officers  and  measured  the  level  of lead  concentration  in their blood. The sample of 126 police officers subjected to constant inhalation of automobile exhaust fumes  in downtown  Cairo had  an  average blood  level  concentration  of 29.2  !g/dl and  an  SD of 7.5 !g/dl; a control sample of 50 police officers from the Cairo suburb of Abbasia, with no history of exposure, had an average blood level concentration of 18.2 !g/dl and an SD of 5.8 !g/dl. (Data from A.-A. M. Kamal, S. E. Eldamaty, and R. Faris, "Blood Lead Level of Cairo Traffic Policemen," Science of the TotalEnvironment 105(1991): 165-70.) Is there convincing evidence of a difference in the population averages?

Reference no: EM131011983

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