Who had the superior score, Sam or Dave?

Question

SAT critical reading scores are normally distributed w/ a mean of 510 and standard deviation of 155

ACT reading scores are normally distributed w/ a mean of 20.5 ad standard deviation of 5

 

Sam takes SAT reading test and scores 660

Dave takes ACT reading test and scores 28

Answer 1

Calculate the z scores for these two persons within the parameters of their SAT or ACT.

The superior individual will be he who has the highest z score.