Question

Below is a set of data representing measurement to the nearest millimeter of triceps skin-fold of seventh-grade boys:

4,7,13,12,10,6,7,17,9,8,13,21,6,9,10,9,8,7,5,9,15,17,19

8,9,10,7,4,20,10,9,15,12,18,12,8,9,9,11,10,7,8,15,6,19,10

9,9,7,13,12,8,22,10,5,8,9,11,13,15,19,17,11,9,8,9,10,11,7

9,14,7,16,10,9,8,9,6,14,11,12,9,8,15,6,10,17

1. Organize data into a grouped frequency distribution.
2. Draw a histogram of the data
3. Draw frequency polygon of the data
4. Calculate cumulative frequency and cumulative percentiles for the data
5. From the grouped frequency distribution, find the mode, median, and rang
6. Transform the raw scores of 7, 10, 13, and 16 into corresponding T-scores, and percentiles.

Answer 1