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Question 857:

A drug manufacturing company conducted a survey of customers. The research question is: Is there a significant relationship between packaging preference (size of the bottle purchased) and economic status? There were four packaging sizes: small, medium, large, and jumbo. Economic status was: lower, middle, and upper. The following data was collected. Please perform a Chi-square test and explain your results. Please show each detailed step for calculations. You are welcome to use software package to valid your results after your hand calculation.
Lower Middle Upper
Small 24 22 18
Medium 23 28 19
Large 18 27 29
Jumbo 16 21 33

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