The following information was obtained from matched samples taken from two populations. The daily production rates for a sample of workers before and after a training program are shown below. Assume the population of differences is normally distributed. 
The point estimate for the difference between the means of the two populations is
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Low Socioeconomic Status
A term that describes individuals or groups who have limited access to financial, educational, and social resources.
Occupational Influence
The impact that one's job or career choice has on their lifestyle, personality, and personal choices.
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