Nine laboratory equipment dealers were asked for price quotes on two similar air quality samplers. The  results of the survey are given below. At α = 0.05, is it reasonable to assert that on an average, sampler  manufactured by company A is less expensive than sampler manufactured by company B? Dealer 1 2 3 4 5 6 7 8 9 Company A price (in $) 250 319 285 260 305 295 289 309 275 Company B price (in $) 270 325 269 275 289 285 295 325 300

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