This output is based on the data set of Exercise 1 (Table 2) in
the SPSS/win Primer. Please note the following:

**1**. The **sample ****mean** of employee
salary is **$39,540.00**

**2**. The **sample ****standard deviation**
of employee salary is **$11,460**.06

**3**. The values on the **horizontal axis**
are the **mid-point
values** for each class interval with a **class size**
of **$10,000**.

**4**. The values on the **vertical axis**
denote the **number of employees; **the height of
each bar represents the number of employees that belong in that **class
interval**. For instance, in the first class interval, two
employees earn between **$25,000 and $35,000**; the
mid-point salary is $30,000. These individuals are, respectively,
the female employee with a BA degree and 4 years of experience,
and the male employee with MBA and two years of experience.

**5**. No employee earns a salary between **$45,000
and $55,000**.

**6**. The bars representing each class interval
are connected because **SALARY** is a **continuous**
**variable**.

**7**. The **sample**
size n = 5; SPSS/win program uses N as the default notation for
the number of observ ations. This may be confusing since N is the
standard notation for the **population**
size.

**8.** The histogram with a normal curve syggests
the presence of positive **skewness**
in the data.

**A Histogram of Employees'
Salary - with a Normal curve**

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or Back to ****Descriptive
Statistics**** or ****Exercises****
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**Copyright© 1996, Ebenge Usip, all rights reserved.
Last revised:
Thursday, July 11, 2013.**