Kaiser’s installs a new milkshake machine that increases labor productivity. If the price of a milkshake remains at $4, does Kaiser’s change the number of workers it hires? Explain.

Kaiser’s Ice Cream Parlor hires workers to produce milkshakes. The table shows the workers’ total product schedule.

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Number of workers 1 23456 2 Quantity produced (milk shakes per day) 7 21 33 43 51 55