KINE 2050 Lecture Notes - Lecture 14: Percentile Rank, Null Hypothesis, Standard Score
7 Mar 2016
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Document Summary
. most research involves collecting data if you have a large enough sample and you will have a normal distribution. if it doesn"t state the data is skewed assume normal data. you can tell where 68% of the score will fall with mean distribution. if you work out sem or confidence interval they are very similar. Sem tells you where the mean will fall 68%. if you have a small sample n less than 30 use the t distribution table. it tells you the reliability of your sample mean. percentiles - percentage of people in a group had a score equal to or less than it is a poorer score. we need to go from a raw score to a percentile and from a percentile to a raw score. When you calculate a z score and look up the area - the area is always the portion from the mean to the z score.
