David conducts his own study. He selects a random sample of 50 students and asks if they are getting 9 hours of sleep per night.
Thirty of the 50 students are not getting enough sleep.
Does David’s sample result provide convincing evidence that more than 50% of all students at the school are not getting enough sleep?
Does David’s sample result provide convincing evidence that more than 50% of all students at the school are not getting enough sleep?
1 answer:
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