Four brands of light bulbs are being considered for use in the
final assembly area of the Ford F-150 truck plant in Dearborn,
Michigan. The director of purchasing asked for samples of 100 from
each manufacturer. The numbers of acceptable and unacceptable bulbs
from each manufacturer are shown below. At the 0.05 significance
level, is there a difference in the quality of the bulbs? (Round
your answers to 3 decimal places.) Manufacturer A B C D
Unacceptable 19 13 19...