Managerial Statistics
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2.2: Soft drinks are sold in three sizes at a fast-food restaurant- small, medium, and large. Explain why the size of the soft drinks is an example of an oridnal scaled variable.
2.25: Each day at a large hospital, several hundred laboratory tests are performed. The rate at which these tests are done improperly ( and therefore need to be redone) seems steady, at about 4%. In an effort to get to the root cause of these nonconformances, tests that need to be redone, the director of the lab decided to keep records over a period of one week. The laboratory tests were subdivided by the shift of works who performed the lab tests. The results are as follows...
(See attached file).
Please explain in detail and step by step on how to solve each problem. Please use Excel.
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Solution Summary
Contingency tables based on total percentages, row percentages, and column percentages constructed. Conclusions reached are indicated.
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