Psy/315 Week 2 Worksheet

In: Philosophy and Psychology

Submitted By js2114
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University of Phoenix Material- Instructor: Mesha Mathis

Week 2 Practice Worksheet

Prepare a written response to the following questions.

Chapter 3

1. For the following scores, find the mean, median, and the mode. Which would be the most appropriate measure for this data set?

2, 2, 0, 5,1, 4,1, 3, 0, 0, 1, 4, 4, 0,1, 4, 3, 4, 2, 1 Mean- (2+2+0+5+1+4+1+3+0+0+1+4+4+0+1+4+3+4+2+1)/20= 2.15 Median- 2.10 Mode- numbers 1 and 4 The most appropriate measure for this data set would be mean as it involves all the numbers combined.

2. Based on the scale of measurement for each variable listed below, which measure of central tendency is most appropriate for describing the data?

a. The time (in years) it takes a sample of students to graduate college

b. The blood type (e.g., Type A, B, AB, O) of a group of participants

c. The rankings of college undergraduate academic programs

Chapter 4

3. An expert reviews a sample of 10 scientific articles (n = 10) and records the following numbers of error in each article: 0, 4, 2, 8, 2, 3, 1, 0, 5, and 7. Compute the SS, the variance, and the standard deviation for this sample using the definitional and computational formulas.

4. A psychologist interested in political behavior measured the square footage of the desks in the official office for four U.S. governors and of four chief executive officers (CEOs) of major U.S. corporations. The figures for the governors were 44, 36, 52, and 40 square feet. The figures for the CEOs were 32, 60, 48, 36 square feet.

a. Figure the means and standard deviations for the governors and CEOs. Governor’s mean= 43; standard= 6.83 CEO’s mean= 44; standard=12.65

b. Explain, to a person who has never had a course in statistics, what you have done. I have found the average for each…...

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