Question

In: Math

Independent random samples of professional football and basketball players gave the following information. Assume that the...

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 = 21

248 263 254 251 244 276 240 265 257 252 282
256 250 264 270 275 245 275 253 265 270

Weights (in lb) of pro basketball players: x2; n2 = 19

202 200 220 210 193 215 222 216 228 207
225 208 195 191 207 196 182 193 201

(a) Use a calculator with mean and standard deviation keys to calculate x1, s1, x2, and s2. (Round your answers to one decimal place.)

x1 =
s1 =
x2 =
s2 =


(b) Let μ1 be the population mean for x1 and let μ2 be the population mean for x2. Find a 99% confidence interval for μ1μ2. (Round your answers to one decimal place.)

lower limit    
upper limit    

Solutions

Expert Solution

a) From the given data

b)

Lower Limit: 43.3

Upper Limit: 64.5


Related Solutions

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