PSY 315 Week 2 Practice Worksheet

PSY 315 Week 2 Practice Worksheet 

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PSY 315 Week 2 Practice Worksheet

Complete the University of Phoenix Material: Week 2 Practice Worksheet.

Click the Assignment Files tab to submit your assignment.

Week 2 Practice Worksheet

Provide a response to the following questions.

1. The Wilcox & Keselman (2003) article from this week’s electronic readings discusses two problems with measures of central tendency: skewness of the data and outliers. Discuss each of these issues and how they affect measures of central tendency.

2. For the following scores, find the mean, median, and mode. Which would be the most appropriate measure for this data set? You may use Microsoft^® Excel^® data anlysis to compute these statistics.  You may copy your output from Microsoft^® Excel^®into this worksheet.

2, 2, 0, 5,1, 4,1, 3, 0, 0, 1, 4, 4, 0,1, 4, 3, 4, 2, 1

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

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

1. The blood type (such as A, B, AB, or O) of a group of participants.

1. The rankings of college undergraduate academic programs.

4. How do the sample mean and the population mean differ? What is the symbol for each type of mean?