Asked by Tracy
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms.
Using the 68-95-99.7 rule, what is the lower bound for the weight of the top 2.5% of students?
Using the 68-95-99.7 rule, what is the lower bound for the weight of the top 2.5% of students?
Answers
Answered by
PsyDAG
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.025) related to the Z score. Insert Z and other values into above equation.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.025) related to the Z score. Insert Z and other values into above equation.
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