Proportion of defectives components:
Degree of freedom = (3-1)*(2-1) = 2
At = 0.05 and df =2, critical value of chi square, = 5.991
Critical value for A vs B =
Critical value for A vs C =
Critical value for B vs C =
Comparison | Difference | Critical value | Significant Diff> CV | ||||
A vs B | 0.02 | 0.07 | 0.05 | 500 | 500 | 0.0319 | Yes |
A vs C | 0.02 | 0.09 | 0.07 | 500 | 500 | 0.0349 | Yes |
B vs C | 0.07 | 0.09 | 0.02 | 500 | 500 | 0.0420 | No |
Benson Manufacturing is considering ordering electronic components from three different suppliers. The suppliers may differ in...
Benson Manufacturing is considering ordering electronic components from three different suppliers. The suppliers may differ in terms of quality in that the proportion or percentage of defective components may differ among the suppliers. To evaluate the proportion defective components for the suppliers, Benson has requested a sample shipment of 500 components from each supplier. The number of defective components and the number of good components found in each shipment is as follows. Supplier Component Defective Good 10 25 50 490...
Benson Manufacturing is considering ordering electronic components from three different suppliers. The suppliers may differ in terms of quality in that the proportion or percentage of defective components may differ among the suppliers. To evaluate the proportion defective components for the suppliers, Benson has requested a sample shipment of 500 components from each supplier. The number of defective components and the number of good components found in each shipment is as follows. Supplier Component A B C Defective 15 35...
Benson Manufacturing is considering ordering electronic camponents from three diferent suppliers. The suppliers may ditter in terms of quality in that the proportion or percentage of defective components may aifer among the supplilers. To evaluate the proporticn delective comporents fer the supplilers,Benson has requested a sample shipment of 5DD components from each suppler. The number of defective components and the number of good compcnents found in each shipment is as folaws Supplier Component Good 430 470 455 a. Fomuiane the...
A manufacturer is comparing shipments of machine parts from two suppliers. The parts from Supplier A are less expensive, but the manufacturer is concerned they may be of lower quality than those from Supplier B. 700 parts were selected from Supplier A and 121 of them were found to be defective. 1200 parts were selected from Supplier B and 180 of them were found to be defective. Can we conclude at a 1% significance level that Supplier A has a...
A manufacturer is considering purchasing parts from three different suppliers. manufacturer is considering purchasing parts from three dfferent suppliers. The parts received from the suooliers are classied as havieg a minor defect, having a majr oe, r being uod. Test resuts frorm samples of parts received from each of the three suppliers are shown below. Note that any test with these data is no longer a test of proportiens for the theee supplier populations beasse the cabegorical response variatie har...
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