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##### ADM 2623 Misc. Problems Assignment

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Question;1. A survey of the number of calls received by a;sample of Southern Phone Company subscribers last week revealed the following;information.;52, 43, 30, 38, 30, 42, 12;46, 39, 37, 34, 46, 32, 18, 41, 5;a) Develop a stem-and-leaf chart. Note: A typical row for the Stem & Leaf;plot might look like 3?0269. Where;the vertical line is obtained by using ?Shift & |\? key. The line is;inserted 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. See Videos ?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 for recording votes;in 1980 & 2002. Set up side-by-side;bar charts by year using the instruction for Side-By-Side Charts in the Class;Notes Conference. Copy/Paste your Chart;into the TFE Editor from EXCEL.;METHOD;1980;2002;Punch cards;18.5;15.5;Lever machines;36.7;10.6;Paper ballots;40.7;10.5;Optical scan;0.8;43.0;Electronic;0.2;16.3;Mixed;3.1;4.1;3. The following are a sample;of the weights of nine jars of peanut butter.;7.69, 7.72, 7.80, 7.86, 7.90, 7.94, 7.97, 8.06, 8.09;a) Compute the median weight.;b) Compute the standard;deviation of the sample using the shortcut formula. Show the formula and values for each term and compute the answer. Use the TFE Equation Editor.;c) Compute the 5 Number System for this data. Just list the values as Xmin=xxx;Q1=xxx,Q2=xxxx,Q3=xxxxx, Xmax = xxxx.;d) Are there outliers? An;outlier value is defined as unusually large or small according to the;expressions: Answer yes or no.;Outlier > Q3 + 1.5(Q3-Q1) or;Outlier < Q1-1.5(Q3-Q1);(20 %);4. Answer questions a. through f. of 3.23 below.;NOTE;The Bienayme-Chebyshev Rule is the same;as the Chebyshev?s Rule in Table 2.6 of your text.;(20 %);5. Compute the mean and standard deviation for;the data in the table below. State your assumptions and show all calculations.;Distance;Frequency;0 to 5;5 to 10;10 to 15;15 to 20;20 to 25;4;15;27;18;6;6. A box;contains 3 red balls and 4 green balls.;If two balls are randomly selected in sequence, without replacement, what is the possibility that a red ball and a;green ball are picked out of the box. State the rule for P(A&B) and then;substitute the values and compute the answer.

Paper#61882 | Written in 18-Jul-2015

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