You test the following hypothesis:
Ho: Males and females produce equal numbers of widgets per hour.
Ha: Males and females do not produce equal numbers of widgets per hour.
When you conduct the study, you find that males produce a mean of 12.3 widgets per hour and females produce a mean of 12.6 widgets per hour. You do a statistical test and get a p-value of 0.0002. You use a threshold of 0.05 to determine statistical significance.
A. Is the result statistically significant? How do you know?
B. Is the result practically significant? How do you know?
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