given mean distance of 16 miles standard deviation of 8 miles with sample of 75 commuters what is probability of sample mean commute distance is greater that 13 miles Search instead for given mean distance of 16 miles standard deviation of 8 miles with sample of 75 commuters what is prabability of sample mean commute distance is greater that 13 miles
Z = (score-mean)/SEm
SEm = SD/√n
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to each Z score.