4. Cebu Technological Corporation manufactures computer monitors. The following data give the numbers of computer monitors produced at the company for a sample of 30 days. 24 32 27 23 33 33 29 25 23 36 26 26 31 20 27 33 27 23 28 29 31 35 34 22 37 28 23 35 31 43 a) Calculate the values of the three quartiles and the interquartile range. Where does the value of 31 lie in relation to these quartiles? b) Find the (approximate) value of the 65th percentile. Give a brief interpretation of this percentile. c) For what percentage of the days was the number of computer monitors produced 32 or higher? Answer by finding the percentile rank of 32.

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