Compute expected number of defective units produced

Reference no: EM13110487

The manufacturing company produces part 2205 for aerospace industry. This particular part can be produced using 3 different production processes. Management wishes to know if quality of units of part 2205 is same for all three processes. Production supervisor obtained following data: Process 1 had 29 defective units in 240 items; Process 2 produced 12 defective units in 180 items and Process 3 produced 9 defective units in 150 items. At significance level of .05, management wants to perform hypothesis test to find out whether quality of items produced appears to be independent of production process used. Compute expected number of defective units produced by Process 1.

Reference no: EM13110487

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