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A SURVEY OF THE NUMBER OF CALLS RECEIVED BY A SAMPLE

A SURVEY OF THE NUMBER OF CALLS RECEIVED BY A SAMPLE

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Author: Christine Farr
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 A survey of the number of calls received by a sample of Southern Phone Companysubscribers last week revealed the following information.52, 43, 30, 38, 30, 42, 12, 46, 39, 37, 34, 46, 32, 18, 41, 5a) Develop a stem-and-leaf chart. Note: A typical row for the Stem & Leaf plot might looklike 30269. Where, the vertical line is obtained by using “Shift & |\” key. The line isinserted at the location of the cursor.b) What basic conclusions can be drawn from this chart?c) Compute the 5 number System for this data set and list Xmin, Q1, Q2, Q3 & Xmax. SeeVideos “5_Number_Sysytem” in Videos –Topics In Stat 230.2. The chart below gives the percentage of counties in the US that use various methods forrecording votes in 1980 & 2002. Set up side-by-side bar charts by year using the instructionfor Side-By-Side Charts in the Class Notes Conference. Copy/Paste your Chart into theTFE Editor from EXCEL.METHODPunch cardsLever machinesPaper ballotsOptical scanElectronicMixed198018.536.740.70.80.23.1200215.510.610.543.016.34.1

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