STP 231 Lecture Notes - Lecture 14: Standard Deviation
Document Summary
Z-score: tells us how many standard deviations above or below the mean is a particular value. Z = (( x - ) / ) Unit of measurement does not affect the z-score value. Z-scores have a mean of 0 and a standard deviation of 1. Most z-scores are between -3 and 3. This tells us how many standard deviations the value is away from the mean. Most college career counselors agree that starting salary is associated with academic major. Even if a person"s first job is not directly related to their course of study, their salary might still be related to their academic major. A recent survey of academic major, and starting salary of graduates showed the following information. A computer science major who responded to the survey received a starting salary of ,000, and an english major received an offer of. For computer science major, the z-score is.
