I need Stat Practice exercise.

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I need Stat Practice exercise.

I need Stat Practice exercise.
PPOL 505 Practice Exercises: Charting Data and Correlation Assignment Instructions Overview Each practice exercises assignment will consist of questions related to the course material for that Module: Week. These exercises are meant to provide you with practice and application of the various concepts you will be studying each week. Practice will help solidify these statistical concepts in a way that simply reading about them cannot. Instructions Complete the following exercises from your Salkind text. Be sure to copy and paste any required SPSS output into a Word document. Save all of your work as one single Word file and upload it for grading. Show your work when required. Chapter 4, “Time to Practice” question 3 Chapter 5, “Time to Practice” question 6 Chapter 6, “Time to Practice” question 4 All questions must be clearly labeled. Answers that are not clearly labeled will not receive credit. Note: Your assignment will be checked for originality via the Turnitin plagiarism tool.
I need Stat Practice exercise.
Chapter 3 Question 4 A third-grade teacher wants to improve her students’ level of engagement during group discussions and instruction. She keeps track of each of the 15 third graders’ number of responses every day for 1 week, and the data are available as Chapter 4 Data Set 2. Use SPSS to create a bar chart with one bar for each day (and warning—this may be a toughie). Chapter 4 Data Set 2 Monday Tuesday Wednesday Thursday Friday 12 17 10 15 20 11 10 10 11 10 15 13 12 10 22 16 18 15 20 10 12 15 12 10 11 10 Chapter 5 Question 6. Use SPSS to determine the correlation between hours of studying and GPA for these honor students. Why is the correlation so low? Hours of Studying GPA 23 3.95 12 3.90 15 4.00 14 3.76 16 3.97 21 3.89 14 3.66 11 3.91 18 3.80 3.89 Chapter 6 Question 4 How can a test be reliable and not valid? Provide an example. Why is a test not valid unless it is reliable?

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