Score on dental anxiety scale range from 0 ( no anxi) to 20 ( extreme anxiety). The scores are normally distributed with a mean of 11 and a standard deviation of 4. Find the z score for the given score on this dental anxiety scale. 16

Question

Score on dental anxiety scale range from 0 ( no anxi) to 20 ( extreme anxiety). The scores are normally distributed with a mean of 11 and a standard deviation of 4. Find the z score for the given score on this dental anxiety scale.  16

oobleck · Answer

16 is 5/4 = 1.25 σ above the mean of 11 So run, do not walk, to your Z table.