Question

The number of data values is 178 and I need to know the 10th and 90th percentiles and explain what the measures of position tell you about the specific variable you are studying

Answer 1

There are 178 data points in total.

In order to obtain the percentile points, first the dataset should be ordered based on magnitude from samllest to highest. The 10-th percentile will be the i.e. 18-th ordered observation.

Similarly the 90-th percentile will be the i.e. 160-th ordered observation.

The measures of position will tell us about the spread and skewness of the variable under study.