Statistical Evaluation

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We will learn and understand how the central tendency is used to evaluate data.

I will learn and discuss how the central tendency is used to evaluate data.

Multiple Choice

What is the median of the following data set?

{18, 19, 19, 21, 25, 28, 31}

• 19

• 21

• 20

• 25

Multiple Choice

What question does inferential statistics attempt to answer?

• How likely is it that the results of this experiment occurred by chance?

• Do the results of this experiment create a bell-shaped curve?

• Is there a positive correlation or a negative correlation between two variables?

• Which measures of central tendency should be used with these results?

Open Ended

What does it mean when a psychologist says that research results are “statistically significant”?