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binomial/normal distribution question

Find the largest value of k such that the probability of the claim being rejected is no
more than 1%.

how would you solve this. I am having trouble understanding where the k-0.5 in the mark scheme comes from. I do not understand the method at all
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Original post by esmeralda123
Find the largest value of k such that the probability of the claim being rejected is no
more than 1%.

how would you solve this. I am having trouble understanding where the k-0.5 in the mark scheme comes from. I do not understand the method at all

Can you please post the whole question?

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