nal Electronics Company buys parts from two subsidiaries. The quality control department is company wanted to check if the distribution of good and defective parts is the same for the lies of parts received from both subsidiaries. The quality control inspector selected a sample 00 parts received from Subsidiary A and a sample of 400 parts received from Subsidiary B. se parts were checked for being good or defective. The following table records the results of this stigation. Subsidiary A Subsidiary B Good 284 (285) 381 (380) Defective 16 (15) 19 (20) t the hypothesis at the 97.5% confidence level that the distribution of good and defective parts is ependent of the subsidiaries from which these parts are taken. NOTE: the numbers in parenthesis the expected values if the condition of independence is actually correct