In a population of children at a local elementary school, the average number of sick days taken per year is 6 with a standard deviation of 3. Assume that this distribution is normal. For random...


In a population of children at a local elementary school, the average number of sick days taken per year is 6 with a standard deviation of 3. Assume that this distribution is normal.
For random samples of size 125, what is the probability that a sample mean for sick days would be 7 or greater?



Jun 01, 2022
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