bannaconde79Lv1

30 Jan 2023

Introduction to statistics

Task 4*(HR): Convert Raw Scores to Z Scores, T Scores, & Performance Categories

*Some students may prefer to complete Task 5 before Task 4 .

a) List the scores in order from lowest to highest.

b) Use the mean calculated in Assignment 1 (it has 1 decimal) and the population standard deviation (sigma, ) calculated in task 2 (rounded to 2 decimals.)

c) Convert all the raw scores to Z scores. Use Round to 2 decimals.

d) Convert the Z scores to T scores. Use T = 50 + (Z * 10)

    Round to a whole number.

e) Interpret each T score as a performance category using the definitions below.

 

         Low                Average       High Average         Elevated      Very Elevated

Lower than 45           45-54              55-59                60-69               70+

 

HR Mean ()      HR Standard deviation (s)

 

Raw Score          Z score           T score          Performance Category

                     (2 decimals) (whole number)