Mathematics
Mathematics, 28.11.2019 20:31, hastlingc

Imagine that you are doing an exhaustive study on the children in all of the daycares in your school district. you are particularly interested in how much time children spend in active play on weekends. you find that for this population of 2,431 children, the average number of minutes spent in active play on weekends is μ = 65.87, with a standard deviation of σ = 87.08. you select a random sample of 25 children of daycare age in this same school district. in this sample, you find that the average number of minutes the children spend in active play on weekends is m = 59.28, with a standard deviation of s = 95.79.

the difference between m and mu is due to the sampling error is

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