Homework: Homework#3 Score: 0 of 1 pt 3.4.25 -38 or 42 (28 complete) HW Score: 6

Question

Homework: Homework#3 Score: 0 of 1 pt 3.4.25 -38 or 42 (28 complete) HW Score: 60.87%, 25.57 of 42 pts Question Help The following data represent the monthly phone use, in minutes, of a customer enrolled in a fraud prevention program for the past 20 months. The phone company decides to use the upper fence as the cutoff point for the number of minutes at which the customer should be contacted. What is the cutoff point? 361 403 477 428 501 478 326 455 418 526 432 461 436 424 320524 -asa-448-17-343- The cutoff point is minutes Round to the nearest minute) Previous qustion Google Enter your answer in the answer box and then click Check Answer Check Answer All parts showing 3-16 PM 0 Type here to search 18/2018

Explanation / Answer

Ans:

Sorted data(ascending order):

320,326,361,367,403,418,424,428,432,436,448,454,455,461,477,478,501,524,526,543

First quartile,Q1=410.5

Third quartile,Q3=477.5

IQR=477.5-410.5=67

Upper fence=Q3+1.5*IQR=477.5+1.5*67=578

*(if quartiles are calculated using percentile method,then Q1=414.25,Q3=477.25,IQR=63,then Upper fence=477.25+1.5*63=572)

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