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6 pages
One Way Analysis Of Variance
One-way analysis of variance is an inferential statistical test, which focuses on the existing difference between the mean ...
One Way Analysis Of Variance
One-way analysis of variance is an inferential statistical test, which focuses on the existing difference between the mean of a given variable that is ...
Southern New Hampshire University B&K Real Estate Company Statistics Question
The B&K Real Estate Company sells homes and is currently serving the Southeast region. It has recently expanded to cover t ...
Southern New Hampshire University B&K Real Estate Company Statistics Question
The B&K Real Estate Company sells homes and is currently serving the Southeast region. It has recently expanded to cover the Northeast states. The B&K realtors are excited to now cover the entire East Coast and are working to prepare their southern agents to expand their reach to the Northeast.B&K has hired your company to analyze the Northeast home listing prices in order to give information to their agents about the mean listing price at 95% confidence. Your company offers two analysis packages: one based on a sample size of 100 listings, and another based on a sample size of 1,000 listings. Because there is an additional cost for data collection, your company charges more for the package with 1,000 listings than for the package with 100 listings.Sample size of 100 listings:95% confidence interval for the mean of the Northeast house listing price has a margin of error of $25,000Cost for service to B&K: $2,000Sample size of 1,000 listings:95% confidence interval for the mean of the Northeast house listing price has a margin of error of $5,000Cost for service to B&K: $10,000The B&K management team does not understand the tradeoff between confidence level, sample size, and margin of error. B&K would like you to come back with your recommendation of the sample size that would provide the sales agents with the best understanding of northeast home prices at the lowest cost for service to B&K.In other words, which option is preferable?Spending more on data collection and having a smaller margin of errorSpending less on data collection and having a larger margin of errorChoosing an option somewhere in the middleFor your initial post:Formulate a recommendation and write a confidence statement in the context of this scenario. For the purposes of writing your confidence statement, assume the sample mean house listing price is $310,000 for both packages. “I am [#] % confident the true mean . . . [in context].”Explain the factors that went into your recommendation, including a discussion of the margin of error
MNS 601 NU Statistics Data Set & Shadow Stocks Questions & Excel Worksheet
Directions: a)Enter all your answers into this Word document (immediately following the relevant question) and submit the ...
MNS 601 NU Statistics Data Set & Shadow Stocks Questions & Excel Worksheet
Directions: a)Enter all your answers into this Word document (immediately following the relevant question) and submit the entire document. IMPORTANT: The name of your Word document MUST begin with your LAST NAME.b)When you use a Template to calculate an answer, copy and paste the results into this document.c)While putting your answers in a different color font is helpful, please DO NOT use red font since this is the color used to provide feedback on your answers.1.The following table shows a data set containing information for 25 of the shadow stocks tracked by the American Association of Individual Investors. Shadow stocks are common stocks of smaller companies that are not closely followed by Wall Street analysts.a.How many variables are in the data set?b.Which of the variables are categorical and which are quantitative?c.For the Exchange variable, show the frequency and the percent frequency for AMEX, NYSE, and OTC. Construct a bar graph similar to Figure 1.4 (in the textbook) for the Exchange variable.d.Show the frequency distribution for the Gross Profit Margin using he five intervals: 0 – 14.9, 15 – 29.9, 30 – 44.9, 45 – 59.9, and 60 – 74.9. Construct a histogram similar to Figure 1.5 (in the textbook).e.What is the average price/earnings ratio?DATA SET FOR 25 SHADOW STOCKSCompanyExchangeTicker SymbolMarket Cap ($ millions)Price/ Earnings RatioGross Profit Margin (%)DeWolfe CompaniesAMEXDWL36.48.436.7North Coast EnergyOTCNCEB52.56.259.3Hansen Natural Corp.OTCHANS41.114.644.8MarineMax, Inc.NYSEHZO111.57.223.8Nanometrics Inc.OTCNANO228.638.053.3Team Staff, Inc.OTCTSTF92.133.54.1Environmental TectonicsAMEXETC51.135.835.9Measurement SpecialtiesAMEXMSS101.826.837.6SEMCO Energy, Inc.NYSESEN193.418.723.6Party City CorporationOTCPCTY97.215.936.4Embrex, Inc.OTCEMBX136.518.959.5Tech/Ops Sercon, Inc.AMEXTO23.220.735.7ARCADIS NVOTCARCAF173.48.89.6Qiao Xing Universal Tele.OTCXING64.322.130.8Energy West Inc.OTCEWST29.19.716.3Barnwell Industries, Inc.AMEXBRN27.37.473.4Innodata CorporationOTCINOD66.111.029.6Medical Action IndustriesOTCMDCI137.126.930.6Instrumentarium Corp.OTCINMRY240.93.652.1Petroleum DevelopmentOTCPETD95.96.119.4Drexler Technology Corp.OTCDRXR233.645.653.6Gerber Childrenswear, Inc.NYSEGCW126.97.925.8Gaiam, Inc,OTCGAIA295.568.260.7Artesian Resources Corp.OTCARTNA62.820.545.5York Water CompanyOTCYORW92.222.974.22.People often wait till middle age to worry about having a healthy heart. However, recent studies have shown that earlier monitoring of risk factors such as blood pressure can be very beneficial (The Wall Street Journal, January 10, 2012). Having higher than normal blood pressure, a condition known as hypertension, is a major risk factor for heart disease. Suppose a large sample of individuals of various ages and gender was selected and that each individual’s blood pressure was measured to determine if they have hypertension. For the sample data, the following table shows the percentage of individuals with hypertension.a.Develop a side-by-side bar chart with age on the horizontal axis, the percentage of individuals with hypertension on the vertical axis, and side-by-side bars based on gender.b.What does the display you developed in part (a), indicate about hypertension and age?c.Comment on differences in gender.AgeMaleFemale20 - 3411.0%9.0%35 – 4424.0%19.0%45 – 5439.0%37.0%55 – 6457.0%56.0%65 – 7462.0%64.0%75 +73.3%79.0%3.The department of transportation’s study on driving speed and miles per gallon for midsize automobiles resulted in the data below.a.Plot the speed and miles per gallon using a scatter plot with speed on the horizontal axis.b.Compute the sample mean and standard deviation for each variable.c.Compute the sample correlation coefficient. Is there a positive or negative correlation between these two variables? Comment.Speed (Miles per Hour)30504055302560255055Miles per Gallon282525233032213526254.The U.S. Census Bureau serves as the leading source of quantitative data about the nation’s people and economy. The following cross-tabulation shows the number of households (1,000s) and the household income by the highest of level of education for the head of the household (U.S. Census Bureau website, 2013). Only households in which the head has a high school diploma or more are included.a.Develop a joint probability tableb.What is the probability of the head of one of these households having a master’s degree or more education?c.What is the probability of a household headed by someone with a high school diploma earning $100,000 or more?d.What is the probability of one of these households having an income below $25,000?e.What is the probability of a household headed by someone with a bachelor’s degree earning less than $25,000?f.Is household income independent of educational level?Highest Level of EducationHousehold IncomeUnder $25,000$25,000 to $49,999$50,000 to $99,999$100,000 and OverTOTALHigh School Graduate988099709441348232,773Bachelor’s Degree248441647666781722,131Master’s Degree6851205301940949003Doctoral Degree7916042210761737TOTAL13,12815,49920,54816,46965,644
CNUAS Independent Project Statistical Analysis Report
Instructor's Slides Independent Project Slides June 2020.pptx Independent Project Slides June 2020.pptx - Alternative Form ...
CNUAS Independent Project Statistical Analysis Report
Instructor's Slides Independent Project Slides June 2020.pptx Independent Project Slides June 2020.pptx - Alternative Formats DUE DATE: End of Course20 points Independent Project Data - Excel (137 KB) (this file contains the data and descriptions of the study) Independent Project Data Raw Data to Upload to StatCrunch - Excel (133 KB) (upload this "clean" data file to StatCrunch)Using the “Independent Project Data” set file supplied above, perform an analysis in StatCrunch for the following using the variable(s) of your choice:1. Frequency distribution of a variable and bar graph of the same variable2. Descriptives of a continuous variable: mean, median, mode, skewness, kurtosis, standard deviation and graph of that variable3. Cross tabulation of two variables with the appropriate statistical test4. Comparison of two groups (single variable) on a single continuous variable with the appropriate statistical test5. Comparison of the effect of three or more groups (single variable) on a single continuous variable with the appropriate statistical test6. Scatterplot and correlation between the two continuous variables with the appropriate statistical test Think carefully about what kind of variables to choose for the given tasks. A short descriptive statement should accompany each of the above including a description of the variables used and any meaning that may be attached to the results. Write up the project in a WORD document for submission. Grading on this project is as follows:3 points for each task 1-6: 1 point each for variable choice, appropriate display/test, description of result.2 points for overall format/readability/construct (the writing and graphs should be formal and of publishable quality as you would see in a journal article).A sample project writeup on another data set is located in "Course Resources" to guide you in constructing the project.
9 pages
Unit3polynomialfunctionsproject
(6x2 - 10x + 4) - (x2 + 12x - 7) = 5x2 + 2x + 11 Factor completely. If the polynomial is not factorable, write prime. 3x3 ...
Unit3polynomialfunctionsproject
(6x2 - 10x + 4) - (x2 + 12x - 7) = 5x2 + 2x + 11 Factor completely. If the polynomial is not factorable, write prime. 3x3y + x2y2 + x2y = xy( 3x2+ xy ...
Binomial Distribution Analysis
CompetencyThis competency will allow you to demonstrate your ability and skill in applying counting principles and analyzi ...
Binomial Distribution Analysis
CompetencyThis competency will allow you to demonstrate your ability and skill in applying counting principles and analyzing binomial distributions.InstructionsYou have just been hired by G&B consulting and given your first assignment. A local independently wealthy citizen who happens to enjoy both gambling and baseball, but not math, has asked you to help him determine the likelihood of some different outcomes for the upcoming season.What to SubmitTo complete this assignment, you must first download the word document.Your step-by-step breakdown of the problems, including explanations, should be present within the word document provided. If you use Excel for any of your calculations that file must also be included in the drop box.
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Most Popular Content
6 pages
One Way Analysis Of Variance
One-way analysis of variance is an inferential statistical test, which focuses on the existing difference between the mean ...
One Way Analysis Of Variance
One-way analysis of variance is an inferential statistical test, which focuses on the existing difference between the mean of a given variable that is ...
Southern New Hampshire University B&K Real Estate Company Statistics Question
The B&K Real Estate Company sells homes and is currently serving the Southeast region. It has recently expanded to cover t ...
Southern New Hampshire University B&K Real Estate Company Statistics Question
The B&K Real Estate Company sells homes and is currently serving the Southeast region. It has recently expanded to cover the Northeast states. The B&K realtors are excited to now cover the entire East Coast and are working to prepare their southern agents to expand their reach to the Northeast.B&K has hired your company to analyze the Northeast home listing prices in order to give information to their agents about the mean listing price at 95% confidence. Your company offers two analysis packages: one based on a sample size of 100 listings, and another based on a sample size of 1,000 listings. Because there is an additional cost for data collection, your company charges more for the package with 1,000 listings than for the package with 100 listings.Sample size of 100 listings:95% confidence interval for the mean of the Northeast house listing price has a margin of error of $25,000Cost for service to B&K: $2,000Sample size of 1,000 listings:95% confidence interval for the mean of the Northeast house listing price has a margin of error of $5,000Cost for service to B&K: $10,000The B&K management team does not understand the tradeoff between confidence level, sample size, and margin of error. B&K would like you to come back with your recommendation of the sample size that would provide the sales agents with the best understanding of northeast home prices at the lowest cost for service to B&K.In other words, which option is preferable?Spending more on data collection and having a smaller margin of errorSpending less on data collection and having a larger margin of errorChoosing an option somewhere in the middleFor your initial post:Formulate a recommendation and write a confidence statement in the context of this scenario. For the purposes of writing your confidence statement, assume the sample mean house listing price is $310,000 for both packages. “I am [#] % confident the true mean . . . [in context].”Explain the factors that went into your recommendation, including a discussion of the margin of error
MNS 601 NU Statistics Data Set & Shadow Stocks Questions & Excel Worksheet
Directions: a)Enter all your answers into this Word document (immediately following the relevant question) and submit the ...
MNS 601 NU Statistics Data Set & Shadow Stocks Questions & Excel Worksheet
Directions: a)Enter all your answers into this Word document (immediately following the relevant question) and submit the entire document. IMPORTANT: The name of your Word document MUST begin with your LAST NAME.b)When you use a Template to calculate an answer, copy and paste the results into this document.c)While putting your answers in a different color font is helpful, please DO NOT use red font since this is the color used to provide feedback on your answers.1.The following table shows a data set containing information for 25 of the shadow stocks tracked by the American Association of Individual Investors. Shadow stocks are common stocks of smaller companies that are not closely followed by Wall Street analysts.a.How many variables are in the data set?b.Which of the variables are categorical and which are quantitative?c.For the Exchange variable, show the frequency and the percent frequency for AMEX, NYSE, and OTC. Construct a bar graph similar to Figure 1.4 (in the textbook) for the Exchange variable.d.Show the frequency distribution for the Gross Profit Margin using he five intervals: 0 – 14.9, 15 – 29.9, 30 – 44.9, 45 – 59.9, and 60 – 74.9. Construct a histogram similar to Figure 1.5 (in the textbook).e.What is the average price/earnings ratio?DATA SET FOR 25 SHADOW STOCKSCompanyExchangeTicker SymbolMarket Cap ($ millions)Price/ Earnings RatioGross Profit Margin (%)DeWolfe CompaniesAMEXDWL36.48.436.7North Coast EnergyOTCNCEB52.56.259.3Hansen Natural Corp.OTCHANS41.114.644.8MarineMax, Inc.NYSEHZO111.57.223.8Nanometrics Inc.OTCNANO228.638.053.3Team Staff, Inc.OTCTSTF92.133.54.1Environmental TectonicsAMEXETC51.135.835.9Measurement SpecialtiesAMEXMSS101.826.837.6SEMCO Energy, Inc.NYSESEN193.418.723.6Party City CorporationOTCPCTY97.215.936.4Embrex, Inc.OTCEMBX136.518.959.5Tech/Ops Sercon, Inc.AMEXTO23.220.735.7ARCADIS NVOTCARCAF173.48.89.6Qiao Xing Universal Tele.OTCXING64.322.130.8Energy West Inc.OTCEWST29.19.716.3Barnwell Industries, Inc.AMEXBRN27.37.473.4Innodata CorporationOTCINOD66.111.029.6Medical Action IndustriesOTCMDCI137.126.930.6Instrumentarium Corp.OTCINMRY240.93.652.1Petroleum DevelopmentOTCPETD95.96.119.4Drexler Technology Corp.OTCDRXR233.645.653.6Gerber Childrenswear, Inc.NYSEGCW126.97.925.8Gaiam, Inc,OTCGAIA295.568.260.7Artesian Resources Corp.OTCARTNA62.820.545.5York Water CompanyOTCYORW92.222.974.22.People often wait till middle age to worry about having a healthy heart. However, recent studies have shown that earlier monitoring of risk factors such as blood pressure can be very beneficial (The Wall Street Journal, January 10, 2012). Having higher than normal blood pressure, a condition known as hypertension, is a major risk factor for heart disease. Suppose a large sample of individuals of various ages and gender was selected and that each individual’s blood pressure was measured to determine if they have hypertension. For the sample data, the following table shows the percentage of individuals with hypertension.a.Develop a side-by-side bar chart with age on the horizontal axis, the percentage of individuals with hypertension on the vertical axis, and side-by-side bars based on gender.b.What does the display you developed in part (a), indicate about hypertension and age?c.Comment on differences in gender.AgeMaleFemale20 - 3411.0%9.0%35 – 4424.0%19.0%45 – 5439.0%37.0%55 – 6457.0%56.0%65 – 7462.0%64.0%75 +73.3%79.0%3.The department of transportation’s study on driving speed and miles per gallon for midsize automobiles resulted in the data below.a.Plot the speed and miles per gallon using a scatter plot with speed on the horizontal axis.b.Compute the sample mean and standard deviation for each variable.c.Compute the sample correlation coefficient. Is there a positive or negative correlation between these two variables? Comment.Speed (Miles per Hour)30504055302560255055Miles per Gallon282525233032213526254.The U.S. Census Bureau serves as the leading source of quantitative data about the nation’s people and economy. The following cross-tabulation shows the number of households (1,000s) and the household income by the highest of level of education for the head of the household (U.S. Census Bureau website, 2013). Only households in which the head has a high school diploma or more are included.a.Develop a joint probability tableb.What is the probability of the head of one of these households having a master’s degree or more education?c.What is the probability of a household headed by someone with a high school diploma earning $100,000 or more?d.What is the probability of one of these households having an income below $25,000?e.What is the probability of a household headed by someone with a bachelor’s degree earning less than $25,000?f.Is household income independent of educational level?Highest Level of EducationHousehold IncomeUnder $25,000$25,000 to $49,999$50,000 to $99,999$100,000 and OverTOTALHigh School Graduate988099709441348232,773Bachelor’s Degree248441647666781722,131Master’s Degree6851205301940949003Doctoral Degree7916042210761737TOTAL13,12815,49920,54816,46965,644
CNUAS Independent Project Statistical Analysis Report
Instructor's Slides Independent Project Slides June 2020.pptx Independent Project Slides June 2020.pptx - Alternative Form ...
CNUAS Independent Project Statistical Analysis Report
Instructor's Slides Independent Project Slides June 2020.pptx Independent Project Slides June 2020.pptx - Alternative Formats DUE DATE: End of Course20 points Independent Project Data - Excel (137 KB) (this file contains the data and descriptions of the study) Independent Project Data Raw Data to Upload to StatCrunch - Excel (133 KB) (upload this "clean" data file to StatCrunch)Using the “Independent Project Data” set file supplied above, perform an analysis in StatCrunch for the following using the variable(s) of your choice:1. Frequency distribution of a variable and bar graph of the same variable2. Descriptives of a continuous variable: mean, median, mode, skewness, kurtosis, standard deviation and graph of that variable3. Cross tabulation of two variables with the appropriate statistical test4. Comparison of two groups (single variable) on a single continuous variable with the appropriate statistical test5. Comparison of the effect of three or more groups (single variable) on a single continuous variable with the appropriate statistical test6. Scatterplot and correlation between the two continuous variables with the appropriate statistical test Think carefully about what kind of variables to choose for the given tasks. A short descriptive statement should accompany each of the above including a description of the variables used and any meaning that may be attached to the results. Write up the project in a WORD document for submission. Grading on this project is as follows:3 points for each task 1-6: 1 point each for variable choice, appropriate display/test, description of result.2 points for overall format/readability/construct (the writing and graphs should be formal and of publishable quality as you would see in a journal article).A sample project writeup on another data set is located in "Course Resources" to guide you in constructing the project.
9 pages
Unit3polynomialfunctionsproject
(6x2 - 10x + 4) - (x2 + 12x - 7) = 5x2 + 2x + 11 Factor completely. If the polynomial is not factorable, write prime. 3x3 ...
Unit3polynomialfunctionsproject
(6x2 - 10x + 4) - (x2 + 12x - 7) = 5x2 + 2x + 11 Factor completely. If the polynomial is not factorable, write prime. 3x3y + x2y2 + x2y = xy( 3x2+ xy ...
Binomial Distribution Analysis
CompetencyThis competency will allow you to demonstrate your ability and skill in applying counting principles and analyzi ...
Binomial Distribution Analysis
CompetencyThis competency will allow you to demonstrate your ability and skill in applying counting principles and analyzing binomial distributions.InstructionsYou have just been hired by G&B consulting and given your first assignment. A local independently wealthy citizen who happens to enjoy both gambling and baseball, but not math, has asked you to help him determine the likelihood of some different outcomes for the upcoming season.What to SubmitTo complete this assignment, you must first download the word document.Your step-by-step breakdown of the problems, including explanations, should be present within the word document provided. If you use Excel for any of your calculations that file must also be included in the drop box.
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