Question: Test the null hypothesis: No significant difference in the average daily production (in dozens) of sewing machines' operators using three different machines. Let = .05.

Test the null hypothesis: No significant difference in the average daily production (in dozens) of sewing machines' operators using three different machines. Let = .05.

Machine I: 15, 18, 19, 22, 11

Machine II: 22, 27, 18, 21, 17

Machine III: 18, 24, 16, 22, 15

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