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Question 1 - 40 points
A researcher hypothesizes that people who listen to classical music have higher concentration skills than those in the general population . On a standard concentration test , the overall mean is 15.5 . The researcher gave this same test to a random sample of 12 individuals who regularly listen to classical music . Their scores on the test were as follows :
16 , 14 , 20 , 12 , 25 , 22 , 23 , 19 , 17 , 17 , 21 , 20
Is this a one- or two-tailed test ?
Conduct all 6 steps of the appropriate statistic . Be sure to label all six steps .
Calculate and interpret the effect size for this test .
Question 1 Rubric
Requirements
Point s