SPSS 5 Assignment—z Scores General Instructions: In this assignment, you will be

Question

SPSS 5 Assignment—z Scores

General Instructions: In this assignment, you will be asked to interpret measures of central tendency and variability to describe the shape of distributions. As with previous assignments, the Aspelmeier and Pierce text does a wonderful job of explaining how to generate measure of central tendency and variability in Chapter 6. Again since you don’t have access to SPSS I have created an output for you, you will just need to interpret the results from the output.

Output:

Descriptives

Descriptive Statistics

N

Minimum

Maximum

Mean

Std. Deviation

Number of Female Friends

100

1

14

5.29

2.938

Length of Closest Female Friendship

100

2

216

82.16

53.183

Valid N (listwise)

100

Graph

Graph

Graph

Graph

Assignment Instructions:

1.How are the histograms for Number of female friends and Zfnum similar and how are they different? Explain why they may have or may not have changed.

They both have the same normal distribution shape, scale, and sample size of 100.

2.How are the histograms for Length of the friendship with their closet female friend and Zflength similar and how are they different? Explain why they may have or may not have changed.

Explanation / Answer

1. Solution

The histograms for Number of female friends is right skewed histogram becuase the tail is on right side. It is seen that the bins have one peak. Therefore, the data is said to be unimodal. The Zfnum plot is symmetric that means mean, mode and median is same. So, the make similar histograms for Number of female friends and Zfnum when the data set is said to be symmetric. But in reality, they are different. They may have change by changing the total number of females are equally distributed on the left and on the right of median value.

2. Solution

the histograms for Length of the friendship with their closet female friend is right skewed but it is more symmetric to number of female. Similary process is apply to make the histogram same is that mean, mode and median value having same value. This may changed by the total number of female and its friendship.

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