Question
Independent random samples of professional football and basketball players gave the following information. Assume that the weight distributions are mound-shaped and symmetric. Weights (in lb)
Independent random samples of professional football and basketball players gave the following information. Assume that the weight distributions are mound-shaped and symmetric.Weights (in lb) of pro football players:x1;n1= 21244261255251244276240265257252282256250264270275245275253265272Weights (in lb) of pro basketball players:x2;n2= 19202200220210193215223216228207225208195191207196182193201
(a) Use a calculator with mean and standard deviation keys to calculatex1,s1,x2, ands2. (Round your answers to four decimal places.)x1=
s1=
x2=
s2=
(b) Let1be the population mean forx1and let2be the population mean forx2. Find a 99% confidence interval for12.(Round your answers to one decimal place.)lower limit
upper limit
(c) Examine the confidence interval and explain what it means in the context of this problem.
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