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Is there a certain format that I need to do this in or is there an example available? 1 answer below » Is there a certain format that I need to do this in or is there an example available? Document Preview: Learning Activity 3 Instructions

This learning activity consists of a variety of problems from Chapters 13–15. Include a title page with your assignment in current APA. Answers must be clearly labeled and appear in consecutive order. Submit your assignment (answers only) as a Word document.

Calculate the mean, median, mode, standard deviation, and range for the following sets of View complete question » Is there a certain format that I need to do this in or is there an example available? Document Preview: Learning Activity 3 Instructions

This learning activity consists of a variety of problems from Chapters 13–15. Include a title page with your assignment in current APA. Answers must be clearly labeled and appear in consecutive order. Submit your assignment (answers only) as a Word document.

Calculate the mean, median, mode, standard deviation, and range for the following sets of measurements:

9, 7, 6, 6, 2

12, 10, 9, 8, 6

82, 82, 82, 82, 82

12, 10, 9, 8, 6, 45

Answer the following questions

Why is the SD in (d) so large compared to the SD in (b)?

Why is the mean so much higher in (d) than in (b)?

Why is the median relatively unaffected?

Which measure of central tendency best represents the set of scores in (d)?

Fill in the blanks with the appropriate raw scores, z-scores, T-scores, and percentile ranks. Note: the Mean = 50, SD = 5.

Raw z T %ile

35

1.2

35

16

The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems:

draw a rough sketch, darkening in the portion of the curve that relates to the answer, and

indicate the percentage or score called for by the problem.

What percentage of the persons who take the test score above 1300?

What percentage score above 800?

What percentage score below 1200?

About what score do 20% of the test-takers score?

About what score do 30% of the test-takers score?

For the data presented below, answer the questions that follow.

Score on political Score on current

Individual awareness test events test

1 24 23

2 16 12

3 11 11

4 9 6

5 8 13

6 14 11

7 17 16

8 19 16

9 21 21

10 25 25

11 18 11

12 13 13

13 11 14

14 6 10

15 9 10

16 12 7

a. Construct a scatterplot.

b. Draw a regression line through the data point that “fits” the data points reasonably well.

c. Enclose the data points with a ellipse.

d…. Attachments: Learning-Acti….docx View less » Apr 14 2014 10:46 PM