So I'm given a table of data, regarding
"An estimator working for a large construction company, is preparing a tender and trying to establish a rate for reinforcing bars in a concrete floor. Data from the work done over the past 5 years by the company is set out in the table below"
And I'm asked, how the estimator can make use of this data?
I've worked out the median to be 240, upper quartile to be 405, lower quartile to be 290, and hence interquartile range to be 115.
The x axis is output (kg/hour) of this concrete (I think) and y is obviously cumulative frequency.
But I'm not sure exactly how someone could "make use" of this information, and how I can relate it to the question.
Any help is great, thanks
Edit I don't think you need the table, but its a table of output (kg/hour) and frequency, which yields a typical ogive