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DSS220 D12 & D13 Business Analytics-Spring 2014 Midterm

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DSS220 D12 & D13 Business Analytics-Spring 2014;Midterm;Exhibit 1.1 Is a summary table of drive times, measured in minutes, showing a random sample;of six people in each of the following four cities: Houston, Charlotte, Tucson, Akron. Means and;variance are supplied in the table. The grand mean for the summary table is 36.625. The;values in Exhibit 1.1 for each of the questions below are the same. It is only necessary to;compute the one way ANOVA once.;Exhibit 1.1 A researcher with Ministry of Transportation is commissioned to study the drive times to work;(one-way) for U.S. cities. The underlying hypothesis is that average commute times are different across;cities. To test the hypothesis, the researcher randomly selects six people from each of the four cities and;records their one-way commute times to work. Refer to the below data on one-way commute time (in;minutes) to work. Note that the grand mean is 36.625.;Refer to Exhibit 1.1. Question 1: The value of the test statistic is;A. 0.06;B. 0.40;C. 2.51;D. 16.75;Exhibit 1.1 A researcher with Ministry of Transportation is commissioned to study the drive times to work;(one-way) for U.S. cities. The underlying hypothesis is that average commute times are different across;cities. To test the hypothesis, the researcher randomly selects six people from each of the four cities and;records their one-way commute times to work. Refer to the below data on one-way commute time (in;minutes) to work. Note that the grand mean is 36.625.;Refer to Exhibit 1.1. Question 2: At the 5% significance level, the critical value is;A. 2.38;B. 3.10;C. 3.86;D. 4.94;DSS220 D12 & D13 Business Analytics-Spring 2014;Midterm;Exhibit 1.1 A researcher with Ministry of Transportation is commissioned to study the drive times to work;(one-way) for U.S. cities. The underlying hypothesis is that average commute times are different across;cities. To test the hypothesis, the researcher randomly selects six people from each of the four cities and;records their one-way commute times to work. Refer to the below data on one-way commute time (in;minutes) to work. Note that the grand mean is 36.625.;Refer to Exhibit 1.1. Question 3: The p-value for the test is;A. Less than 0.01;B. Between 0.01 and 0.025;C. Between 0.025 and 0.05;D. Greater than 0.05;Exhibit 1.1 A researcher with Ministry of Transportation is commissioned to study the drive times to work;(one-way) for U.S. cities. The underlying hypothesis is that average commute times are different across;cities. To test the hypothesis, the researcher randomly selects six people from each of the four cities and;records their one-way commute times to work. Refer to the below data on one-way commute time (in;minutes) to work. Note that the grand mean is 36.625.;Refer to Exhibit 1.1. Question 4: The conclusion for the hypothesis test is;A. Reject the null hypothesis, cannot conclude that not all mean commute times are equal;B. Do not reject the null hypothesis, cannot conclude that not all mean commute times are equal;C. Reject the null hypothesis, not all mean commute times are equal;D. Do not reject the null hypothesis, not all mean commute times are equal;Question 5: The purpose of data visualization is to;A. Communicate information clearly through graphical means;B. Stimulate viewer engagement and attention;C. Allow people to easily identify patterns;D. All of the above;DSS220 D12 & D13 Business Analytics-Spring 2014;Midterm;Refer to Exhibit 1.2. Question 6: A hedge fund manager needs to achieve a 16% return on her;portfolio in order to make her clients happy AND to buy her new get-a-way place in Grand Cayman;(complete with catamaran, speed boat and parasail). She has collected the most recent 12 months of;returns data for her primary holdings shown in Exhibit 1.2. With equal allocation, the return for the;portfolio is 12.086%.;Jan;Feb;Mar;Apr;May;Jun;Jul;Aug;Sep;Oct;Nov;Dec;Mean;Returns;JSDA;0.156;0.045;0.032;0.020;-0.178;0.136;0.179;0.230;0.047;0.383;0.009;0.502;0.130;Stock Returns;COKE;WFM;0.336;0.155;0.446;0.023;-0.049;0.021;-0.056;0.088;0.089;0.157;0.227;0.015;0.584;0.029;0.083;0.166;0.080;0.043;0.677;0.026;0.065;0.022;0.313;0.098;0.233;0.070;TBILL;0.050;0.050;0.050;0.050;0.050;0.050;0.050;0.050;0.050;0.050;0.050;0.050;0.050;Refer to Exhibit 1.2. Question 6: What will be the percent allocation for Jones Soda (JSDA) for;portfolio to return 16%?;A. 0.09;B. 0.00;C. 0.12;D. 0.13;Refer to Exhibit 1.3. Question 7: General Mills announced the launch of reformulated "whole grain;versions of its cereals at the same time it is closing its Black Foot plant. Grain elevators supplying the;grain are located in Duluth, MN, and St. Louis, MO, while manufacturing plants are located in Black Foot;ID, Cedar Rapids, IA, and Albuquerque, NM. Capacities and costs are indicated in the table.;General Mills Supply Chain;Data;COSTS $/Ton;Duluth Elevator A;St. Louis Elevator S&X;SLACK SUPPLY;Demand;Black Foot;36.81;20.40;999;Cedar;Rapids;11.82;8.52;999;Albuquerqu;e;41.28;31.35;999;4860000;4050000;7290000;SLACK;DEMAND;Supply;999;999;999;0;Refer to Exhibit 1.3. Question 7: The current minimum transportation cost is $ 431,859,600.;When General Mills closes its Black Foot plant, the new minimum transportation cost will be;A. 284,455,800;B. 147,403,800;C. 579,263,400;D. Cannot be determined given the information.;9720000;6480000;0;16200000 \;16200000

 

Paper#31355 | Written in 18-Jul-2015

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