Statistical Analysis

Use the IQ data below and assess whether any of the IQ scores are statistically
significantly hi or low. Please provide corresponding z-score and percent of scores below from the table
in the book. That is, you will need to provide the percent of all scores that falls BELOW the z-score you
calculate (see z table in back of book gives you this percent). This is often referred to as the percentile
rank. Your job will be to select one and use the table to assess what is the z cut-off score that would label
a finding “statistically significant” or not. You will then compare the z-scores you calculate with that cutoff score.
Thus, for this assignment, provide z-score for each of the scores below and a discussion of whether each
meets the criteria of “statistically significant” and why. You will need to do this in the same format as in
assignment 1: a) introduction to your paper, b) method section which includes variables being assessed, c)
a results section, and d) conclusions.
IQ
score
100
90
110
160
90
85
65
100
95
98