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Bluebook SAT Test Inference from Sample Statistics and Margin of Error 16 is part of the expanded VIP practice test library — only for VIP members.
Question 1👑 VIP
A researcher surveys a random sample of 625 students and finds that 58% prefer digital textbooks. The margin of error is ±4 percentage points at 95% confidence. The researcher wants to report that a majority (more than 50%) of students prefer digital textbooks. Is this conclusion valid?
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