Three suppliers provide parts in shipments of 500 units Random
Three suppliers provide parts in shipments of 500 units. Random samples of six shipments from each of the three suppliers were carefully checked, and the numbers of parts not conforming to standards were recorded. These numbers are listed in the following table:
a. Prepare the analysis of variance table for these data.
b. Test the null hypothesis that the population mean numbers of parts per shipments not conforming to standards are the same for all three suppliers.
c. Compute the minimum significant difference and indicate which subgroups have different means.
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