FYI: This question is for a Psychology 226 course, Statistical Methods in Psychology You are told that the following data represents the weight, in pounds, of 3rd grade students: 67, 81, 59, 77, 72, 70, 69, 62, 54, 60, 58, 69. find the median find the mean find the iqr State shape of distribution based on your measures of central tendency
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
FYI: This question is for a Psychology 226 course, Statistical Methods in Psychology
You are told that the following data represents the weight, in pounds, of 3rd grade students: 67,
81, 59, 77, 72, 70, 69, 62, 54, 60, 58, 69.
find the median
find the mean
find the iqr
State shape of distribution based on your measures of
Note: Since you have posted a question with multiple subparts, we will solve the first three subparts for you. To get the remaining subparts solved, please repost the complete question and mention the subparts to be solved.
You are told that the following data represents the weight, in pounds, of 3rd grade students: 67,
81, 59, 77, 72, 70, 69, 62, 54, 60, 58, 69.
To find the median, we need to arrange the data an ascending order.
54,58,59,60,62,67,69,69,70,72,77,81
Here, N=12.
so, median(Q2) =
=
=(6th+7th) observation.
=0.5*(67+69)
=68
Learn your way
Includes step-by-step video
Step by step
Solved in 2 steps
