PELLYKW1A3Chapter Problems

PELLYKW1A3Chapter Problems - Workshop 1 Individual Review...

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Unformatted text preview: Workshop 1 Individual Review Questions 1.1 What is the dif erence betwe n a sample and a population? 5 1.2 What is the dif erence betwe n a statistic and a parameter? 5 1.3 What is the dif erence betwe n descriptive statitics and inferential statistics? 5 1.4 What is an operatons definition and why are operational definitions so important? An operational definition defines something. It is a cor esponding variable and help with analysis. 5 1.5 Excel would be useful in statestics because it can help show and quantify statistics in a readable man er 5 1.6 a. Describe the population of interest Population= students at the midwestern university 1.25 b. Describe the sample that was col ected Sample= ful time first year students 1.25 c. Describe a paramter of interest. Parameter of Interest= student study habits 1.25 d. Describe the statistic used to estimate the parameter. Statistic= percentages calculated as a result of the survey 1.25 1.7 a. Describe the population of interest Adults in USA 2.5 b. Describe the sample that was col ected 10 0 adults were poled al 18 and over living within the USA 2.5 1.8 a. Describe the population of interest Population of interest= Adults who reside in America 1.5 b. Describe the sample that was col ected Sample= Adults whom have children 18 years or older living in the same household 1.5 c. Is 80% a parameter or a statistic. Explain. Parameter, because it is a metric 2 1.9 a. Describe the population of interest Population of interest= Busines Students 2.5 b. Describe the sample that was col ected Sample= 96 students selected based on their demographic information 2.5 2.95 0.75 Entre Number Served Percentage Be f 187 30% Chicken 103 16% Mixed 30 5% Duck 25 4% Fish 12 19% Pasta 63 10% Shelfish 74 12% Veal 26 4% Totals 630 10 % b.Construct a bar chart, a pie chart, and a Pareto chart fort the type of entre s ordered. 0.75 0.75 0.75 c. Do you prefer using a Pareto chart or a pie chart for these data? Why? A pie chart- it is easier to read 1 Be f, Chicken, and Fish are the thre most common types of entre s 1 2.97 a.Construct a pie chart and a Pareto chart for the percentage of counties using the various methods. 1 \ 1 1.5 Voting has predominatly moved towards electronic c. What dif erences are there betwe n the methods used in 20 0 and 20 6? Electronic and Opticaly Scan ed paper balots are drasticaly increased 1.5 2.9 1 Score Bands FrequencyPercentageCummulative Percentage 0 but les than 10 7 14% 14% 10 but les than 20 7 14% 28% 20 but les than 30 14 28% 56% 30 but les than 40 8 16% 72% 40 but les than 50 0% 72% 50 but les than 60 2 4% 76% 60 but les than 70 2 4% 80% 70 but les than 80 1 2% 82% 80 but les than 90 1 2% 84% 90 but les than 10 1 2% 86% 10 but les than 1 0 0% 86% 1 0 but les than 120 2 4% 90% 120 but les than 130 2 4% 94% 130 but les than 140 1 2% 96% 140 but les than 150 0% 96% 150 but les than 160 1 2% 98% 160 but les than 170 1 2% 10 % 50 b. Construct a histogram and a percentage polygon....
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This note was uploaded on 02/12/2012 for the course MBA 551 taught by Professor Smith during the Spring '11 term at Indiana Wesleyan.

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PELLYKW1A3Chapter Problems - Workshop 1 Individual Review...

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