False.
To analyze the transformation, let's start with the original function \( f(x) = \sqrt[3]{x} \).
The transformed function is given as \( f(x+1) = \sqrt[3]{x+1} + 3 \).
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The term \( \sqrt[3]{x+1} \) indicates a horizontal shift. Specifically, the \( x + 1 \) means the function is translated to the left by 1 unit.
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The \( + 3 \) at the end indicates a vertical shift upwards by 3 units.
Thus, the correct interpretation is that it is a translation to the left by 1 unit and up by 3.
So the statement is true.