Estimating Quartiles Using Interpolation
A manufacturing company records the number of defective items produced daily. The data is grouped into class intervals as follows: Class Interval: 0-5, 5-10, 10-15, 15-20 Frequency: 8, 15, 12, 5 (a) Construct the cumulative frequency distribution table for the given data. (b) Using linear interpolation, estimate the first quartile (Q1) and the third quartile […]
Part b
Using linear interpolation and the cumulative frequency table from part (a), estimate the first quartile (Q1) and the third quartile (Q3). Calculate the interquartile range (IQR).