A researcher wishes to know whether or not students sleep less than all college students. It is known that the average college student sleeps 6.4 hours per weeknight. The researcher takes a random sample of 35 students and determines that students have a mean sleep time of 6.2 hours, and calculates of p value of 0.006, allowing the correct claim of statistical significance. If, in fact, it turns out that students really do sleep the same as all college students, what type of error has been made?

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