In a population survey of patients in a rehabilitation hospital, the mean length of stay in...

In a population survey of patients in a rehabilitation hospital, the mean length of stay in the hospital was 12.0 weeks with a standard deviation equal to 1.0 week. The distribution was normally distributed. What is the percentile rank for each of the following z scores? Enter the percentile rank to the right of each z score. Assume a normal distribution.

a) 1.23 _____

b) 0.89 ______

c) -0.46 _____

d) -1.00 ______

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