3-5 page 126 number 5
1. Type the list of yields from page 128 into column 1 of the Sample Editor of STATDISK
2. Click Data then Boxplot to evaluate column 1 to get the screen at the right.
3. The numeric values of the 5-numbers are listed in the table and indicated on the boxplot.
2. Click Data then Boxplot to evaluate column 1 to get the screen at the right.
3. The numeric values of the 5-numbers are listed in the table and indicated on the boxplot.
4. Note: The 5 numbers slice the data into 4 groups of equal size.
5-number summary Minimum = 1,316 1st Quartile boundary = 1,511 Median = 1,910 3rd Quartile boundary = 2,060 Maximum = 2,496
In the case of the corn seeds, the middle 50% of the yeilds are between 1,511 and 2,060 pounds of head corn per acre, a very important piece of information for farmers.· 25% of the data is between the minimum and the 1st Quartile boundary.
· 25% of the data is between the 1st Quartile boundary and the median.
· 25% of the data is between the median and the 3rd Quartile boundary.
· 25% of the data is between the 3rd Quartile boundary and the maximum.