Referring to Example 12 and the data on repair, use the 0.05 level of significance to test
Question:
Referring to Example 12 and the data on repair, use the 0.05 level of significance to test whether there is homogeneity among the shops' repair distributions.
Data From Example 12
Transcribed Image Text:
EXAMPLE 12 Contingency table with column totals fixed Three different shops are used to repair electric motors. One hundred motors are sent to each shop. When a motor is returned, it is put in use and then the repair is classified as complete, requiring an adjustment, or an incomplete repair. The column totals are fixed at 100 each and the grand total at 300. Shop 1 produced 78 complete repairs, 15 minor adjustments, and 7 incomplete repairs. Shop 2 produced 56, 30, and 14, respectively; while Shop 3 produced 54, 31, and 15 complete, minor adjustments, and incomplete repairs, respectively. Shop 1 Shop 2 Shop 3 Total Complete 78 56 54 188 Repair Adjustment 15 30 31 76 Incomplete 7 14 15 36 Total 100 100 100 300 Calculate the expected frequencies.
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Related Book For
Probability And Statistics For Engineers
ISBN: 9780134435688
9th Global Edition
Authors: Richard Johnson, Irwin Miller, John Freund
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