Answer: The U.S. government funded Eli Whitney's attempts to use interchangeable parts to make cheap, high quality muskets.
Step-by-step explanation:
Mass Production relies heavily on interchangeable parts that are uniform enough to simply fit into a part of the thing being produced instead of each part having to be crafted individually to fit.
The United States government recognized that interchangeable parts could help in war as muskets would be easier to replace and repair and so funded Eli Whitney's attempts to use interchangeable parts in weapons.
The principles that came about from this went a long way in shaping mass production.