Overview
Please view the following videos on Measures of Central Tendency and Z-scores. These videos will be useful in finishing this activity. Pay close attention to calculating the standard deviation dependent upon whether your data set is a sample or population:
Calculating Summary Statistics in StatCrunch (4:23/YouTube
_2_2_standard_deviation_StatCrunch.mov (3:00/YouTube)
StatCrunch Zscores with raw data (3:52/YouTube)
Note: Many students ask what the rule for rounding numbers is. Unfortunately, there is no "rule." I recommend students do all their calculations without rounding numbers and then round to the nearest second decimal point in their answers.
Follow the steps below to complete this activity successfully.
- Download the document RSCH 665 Module 2 Assignment (DOCX)
- Create a new document that contains your solutions to the problems.
- Save your assignment using a naming convention that includes your first and last name and the activity number (or description). Do not add punctuation or special characters.
- Save your StatCrunch output file using the same naming convention that includes your first and last name, the activity number, and output in the file name. View the instructions (PDF) Download Instructionson how to create and download the output file. Do not add punctuation or special characters.Download Instructions on how to create and download the output file. Do not add punctuation or special characters.
- Submit both the assignment and Statcrunch output document in Canvas. You will receive zero credit for this assignment if you do not submit your StatCrunch output file. Note: you must download both the assignment submission and the StatCrunch output document for all StatCrunch assignments in this course.