Answer
The probability that Shelia is diagnosed as needing further testing for gestational diabetes is 0.25
Work Step by Step
Here we have μ = 122, x = 130, σ = 12
We need to calculate z score for the probability:
$z = \frac{x - μ}{σ} = \frac{130-122}{12} = 0.67$
Using Table A of the book, we have:
P(z > 0.67) = 0.2514
