Two manufacturing facilities produce 1280 1024 LED (light emitting diode) displays Twelve shipments are tested at random from each lab, and the number of bad pixels per billion is noted for each shipment Research question At 05, do the medians differ Defects in Randomly Inspected LED Displays Facility Lab A 422 319 326 410 393 368 497 381 515 472 423 355 Number of Bad Pixels per billion Lab B 497 421 408 375 410 489 389 418 447 429 404 477

Question: Two manufacturing facilities produce 1280 1024 LED (light-emitting diode) displays. Twelve shipments are tested at random from each lab, and the number of bad

Two manufacturing facilities produce 1280 Ã— 1024 LED (light-emitting diode) displays. Twelve shipments are tested at random from each lab, and the number of bad pixels per billion is noted for each shipment. Research question: At Î± = .05, do the medians differ?

Defects in Randomly Inspected LED Displays Facility Lab A 422 319 326 410 393 368 497 381 515 472 423 355 Number of Bad Pixels per billion Lab B 497 421 408 375 410 489 389 418 447 429 404 477

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