A surveyor conducts a significance test every time he analyzes a new survey data. Over time, he

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A surveyor conducts a significance test every time he analyzes a new survey data. Over time, he conducts 200 tests.

(a) Suppose H0 is true in every case. What is the distribution of the number of times she rejects H0 at the 0.01 level?

(b) Suppose she rejects H0 in seven of the tests. Is it plausible that H0 is correct in every case? Explain.

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