Psy 315 Statistical Reasoning in Psychology

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wk1_chapter1instructions.docx

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Chapter 1 Instructions

Practice Problem 12, 15, 21, & 22

Due Week 1 Day 6 (Sunday)

Follow the instructions below to submit your answers for Chapter 1 Practice Problem 12, 15, 21, & 22.

1. Save Chapter 1 Instructions to your computer.

1. Type your answers into the shaded boxes below. The boxes will expand as you type your answers.

1. Each shaded box is worth 1 point unless otherwise noted; thus, 28 points total for Chapter 1.

1. Resave this form to your computer with your answers filled-in.

1. Upload the saved form to the Assignment Files tab.

Read each question in your text book and then type your answers for Chapter 1 Practice Problem 12, 15, 21, & 22 in the corresponding spaces below.

12a. equal-interval –      

12b. rank-order –      

12c. nominal –      

12d. ratio scale –      

12e. continuous –      

12f. discrete –      

15a. Type your answers to Practice Problem 15a in the shaded boxes below. The interval has been filled in for you. The “f” represents the frequency, and “%” represents the relative percentage for each interval. The Interval was obtained by creating a grouped frequency table with Excel. You are strongly encouraged to work through the “Recommended” Learning Activity titled “Grouped Frequency Distributions and Histograms” before attempting the data in problem 15.

Interval

f

%

50 - 56

     

     

43 - 49

     

     

36 - 42

     

     

29 - 35

     

     

22 - 28

     

     

15 - 21

     

     

15b. Create a histogram from the information in the grouped frequency table in 15a. Attach your histogram as a separate document along with this answer template. Note that problem 15b is worth 5 points.

15c. In the shaded box below, describe the general shape of the distribution in 15b.

     

21a. Explain the idea of frequency table 1-10 below:

     

21b. Explain the meaning of the pattern of results below:

     

22a. Explain the idea of frequency table 1-11 below:

     

22b. Explain the meaning of the pattern of results below: