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What is Zstat? (rounded to two decimals) Given: In a random sample of250 items, 36are defective. If the null hypothesis is that18% of the items

What is Zstat? (rounded to two decimals)

Given:

In a random sample of250 items, 36are defective. If the null hypothesis is that18% of the items in the population are defective, what is the value of Zstat?

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