23) H0: The number of defective parts is independent on the machine that produced it. H1: The number of defective parts is dependent on the machine that produced it. χ2 = 2.353...23) H0: The number of defective parts is independent on the machine that produced it. H1: The number of defective parts is dependent on the machine that produced it. χ2 = 2.3536; p-value = 0.5023; do not reject H 0 . There is not enough evidence to support the claim that the number of defective parts is dependent on the machine that produced it.