Asked by Anonymous

1. The amount of pyridoxine (in grams) per multiple vitamin is normally distributed with = 110 grams and = 25 grams. A sample of 25 vitamins is to be selected. So, 95% of all sample means will be greater than how many grams?
Answered by PsyDAG
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the Z score related to that proportion.

Insert that value into this equation.

Z = (score-mean)/SD

Solve for the value of the score in grams.