Final answer:
The spelling error in the sentence should be corrected by changing "noticable" to "noticeable".
Step-by-step explanation:
The spelling error in the sentence should be corrected by changing "noticable" to "noticeable". The correct spelling of the word is noticeable, which means able to be noticed or seen easily. The sentence would then read: "As Hitler rose to power there was a noticeable surge in the mistreatment of Jews, with the perpetrators seemingly immunized from punishment."
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