Basic Descriptive Statistics

The data (AGEDEATH) used in this example can be found in the Minitab folder under STUDNT14. The first three lines of the data are below.

Day	Month	Gender	Birthplace	Age
3	1	Male	MA	87
5	1	Male	NJ	83
31	12	Male	NY	42
.	.	.	.	.

To find any of the descriptive statistics, go to the "Stat" pull down menu and select, "Basic Statistics", and then "Display Descriptive Statistics". The following screen will appear.

I am interested in getting the descriptive statistics for age. In order to get descriptive statistics on it, double click on C5. You can type it in, but you have to type it exactly as it appears in the grey box for each column with the single quotes. Hit ok. This will be your output.
Descriptive Statistics: Age

Variable N N* Mean SE Mean StDev Minimum Q1 Median Q3

Age 151 0 84.391 0.943 11.583 22.000 80.000 86.000 91.000

Variable Maximum

Age 105.000

N is the number in the sample, N* is the number of blanks in the data column, Mean is the sample mean, Median is the sample median, TRMean is the trimmed mean(We will not use this in this class.), StDev is the standard deviation of the mean, SE Mean (standard error of the mean) we will cover later in the class, Minimium is the sample minimium, Maximium is the sample Maximum, Q1 ( Q(..25) ) is the first quartile and Q3 (Q (.75) ) is the third quartile. If you computed Q1 or Q3 by hand, you may get slightly different numbers.