. An article in Industrial Quality Control (1956, pp. 5-8) describes an experiment to investigate the effect of glass type and phosphor type on the brightness of a television tube. The response mea- sured is the current necessary (in microamps) to obtain a specified bright- ness level. The data are shown here. Analyze the data and draw conclusions.

Transcribed Image Text:

Phosphor Type Glass Type 1 2 3 1 280 300 290 290 310 285 285 295 290 2 230 260 220 235 240 225 240 235 230