Question: As reported by ACT Research Service, the mean ACT Math score is 20.8. If ACT math scores are approximately normally distributed with a standard deviation
As reported by ACT Research Service, the mean ACT Math score is 20.8. If ACT math scores are approximately normally distributed with a standard deviation of 4.8, what is the probability that a random sample of 10 ACT test takers has a mean math score of 19 or less? Note: I highly recommend taking a screenshot of any StatCrunch work and including that in your exam.
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