You have obtained test scores from the introduction to psychology final exam. The mean test score was 80.
Calculate a population variance and standard deviation of the following test scores from 10 students by hand. Please show your work for calculating the variance and standard deviation. [Refer to Unit 9 Slides 17-20.]
Student Name Final Exam Score
Michael 98
Linn 92
Sam 86
Peter 85
Mary 82
Olivia 76
Christy 78
Nathan 71
Tammy 69
Jenny 63
Part 2: Frequency Analysis and Descriptive Statistics
In Part 2, you will run frequency and descriptive analysis of students’ performance on the student class, chapter quiz scores, and final exam scores in Jamovi and answer the following questions.. [Refer to Unit 9 Slides 3-24.]
Open Jamovi data file “PSY590_Unit 9_Freqency.omv”.
Run a frequency analysis. What percentage of seniors are included in the dataset?
Based on the descriptive analysis, report the minimum and maximum scores of the Chapter Quiz.
What are the average score and standard deviation of the Final Exam? Provide interpretation of the standard deviation.
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