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find the equation of the line
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y+3 = -6(x-2)
y = -6x+12-3
y =-6x+9
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STA 3215 Rasmussen College Inferential Statistics Questions
Competency Formulate and evaluate hypothesis tests for population parameters based on sample statistics using both Critic ...
STA 3215 Rasmussen College Inferential Statistics Questions
Competency Formulate and evaluate hypothesis tests for population parameters based on sample statistics using both Critical Regions and P-Values, and be able to state results in a non-technical way that can be understood by consumers of the data instead of statisticians. Dealing with Two Populations Inferential statistics involves forming conclusions about a population parameter. We do so by constructing confidence intervals and testing claims about a population mean and other statistics. Typically, these methods deal with a sample from one population. We can extend the methods to situations involving two populations (and there are many such applications). This deliverable looks at two scenarios. Concept being Studied Your focus is on hypothesis tests and confidence intervals for two populations using two samples, some of which are independent and some of which are dependent. These concepts are an extension of hypothesis testing and confidence intervals which use statistics from one sample to make conclusions about population parameters. What to Submit Your research and analysis should be presented on the spreadsheet provided below.
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
WU The Convenience Sampling and Stress Factors Qualitative Research Quiz
QUESTION 1Dr. Smith indicated that participants in her study will: a) be Asian American, b) be males, c) be 18 years or ol ...
WU The Convenience Sampling and Stress Factors Qualitative Research Quiz
QUESTION 1Dr. Smith indicated that participants in her study will: a) be Asian American, b) be males, c) be 18 years or older, d) speak English fluently, and e) have a biological child diagnosed with some type of Attention Deficit Hyperactivity Disorder in the ages 6-12. Dr. Smith described her sampling strategy as:a.Snowball samplingb.Maximum variation samplingc.Criterion Samplingd.Convenience Sampling14.29 points QUESTION 2Which of the following is a well-stated qualitative research question?a.Is there a correlation between marital satisfaction and number of years in the marriage?b.Do attitudes toward divorce, number of years in marriage, and marital commitment predict marital satisfaction?c.Is there a significant mean difference in attitudes toward divorce between individuals who have been married for one year and individuals who have been married for more than twenty years? d.How do participants describe the experience of being married for more than twenty years?14.285 points QUESTION 3The main instrument in qualitative research is a.The problem statementb.The researcherc.The survey or standardized test d.The structure of a project14.285 points QUESTION 4Note: Read this passage and respond to questions 4-7In the past year, 52 suicides amongst First Responders such as paramedics, firefighters and rescuers were reported in the country. It was not until recently that the relationship between working as a First Responder and increased rates of Posttraumatic Stress Disorder (PTSD) and suicide was established. While considerable information exists regarding job-related stress in other occupations such as mental health workers and psychiatric staff working at emergency rooms, there is scant research on job-related stress among First Responders. Having awareness of stress triggering factors among First Responders will have the potential to alert supervisors and help in the creation of stress reduction programs or interventions targeting First Responders.Which of the following statements represent the significance of the study?a.First Responders are experiencing high level of stressb.Understanding First Responders’ stress triggering factors will alert supervisorsc.PTSD and suicide are major problems affecting First Respondersd.The relationship between PTSD and working as a First Responder has not been established 14.285 points QUESTION 5Note: Please refer to the previous passage to answer this question.Which of the following statements represent the research gap in this study?a.Stress triggering factors among First Responders are not knownb.The relationship between PTSD and working as First Responders has not been exploredc.There is a lack of stress prevention programs for First Respondersd.A job hazard analysis of First Responders’ tasks has not been conducted14.285 points QUESTION 6Note: Please refer to the previous passage to answer this question.A potential purpose statement for this study could be: The purpose of this study is to…a.Explore the relationship between PTSD and working as First Responderb.Create a stress prevention program for First Respondersc.Understand job satisfaction among First Respondersd.Explore stress triggering factors among First Responders14.285 points QUESTION 7Note: Please refer to the previous passage to answer this question.A research question for this study is: a.What is the relationship between developing PTSD and working as a First Responder? b.What type of stress prevention program fits First Responders’ needs? c.Are First Responders satisfied with their jobs?d.How do First Responders describe job related stress factors?
1 page
Answer
The computed value for t = +3.28 is the computed difference that is relative to the variation in given sample data. The gr ...
Answer
The computed value for t = +3.28 is the computed difference that is relative to the variation in given sample data. The greater the computed value for ...
STA 3215 ARCC Inferential Statistics and Analytics Paper
STA3215CBE Section 02CBE Inferential Statistics and Analytics (11 Weeks) - CBE - 2021 Fall Quarte
Deliverable 5 - Hypothes ...
STA 3215 ARCC Inferential Statistics and Analytics Paper
STA3215CBE Section 02CBE Inferential Statistics and Analytics (11 Weeks) - CBE - 2021 Fall Quarte
Deliverable 5 - Hypothesis Tests for Two Samples item options
Assignment Content
Competency
Evaluate hypothesis tests for population parameters from two populations. Student Profile
You are a statistician working for a drug company. A few new scientists have been hired by your company. They are experts in pharmacology, but are not experts in doing statistical studies, so you will explain to them how statistical studies are done when testing two samples for the effectiveness of a new drug. The two samples can be dependent or independent, and you will explain the difference. Concept being Studied
Your focus is on hypothesis tests and confidence intervals for two populations using two samples, some of which are independent and some of which are dependent. These concepts are an extension of hypothesis testing and confidence intervals which use statistics from one sample to make conclusions about population parameters. Student Success Criteria
9 pages
Patterns And Modeling 2
It is vital to understand the functionality and significance of the bivariate and multiple regression models. However, it ...
Patterns And Modeling 2
It is vital to understand the functionality and significance of the bivariate and multiple regression models. However, it is precise that where the ...
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STA 3215 Rasmussen College Inferential Statistics Questions
Competency Formulate and evaluate hypothesis tests for population parameters based on sample statistics using both Critic ...
STA 3215 Rasmussen College Inferential Statistics Questions
Competency Formulate and evaluate hypothesis tests for population parameters based on sample statistics using both Critical Regions and P-Values, and be able to state results in a non-technical way that can be understood by consumers of the data instead of statisticians. Dealing with Two Populations Inferential statistics involves forming conclusions about a population parameter. We do so by constructing confidence intervals and testing claims about a population mean and other statistics. Typically, these methods deal with a sample from one population. We can extend the methods to situations involving two populations (and there are many such applications). This deliverable looks at two scenarios. Concept being Studied Your focus is on hypothesis tests and confidence intervals for two populations using two samples, some of which are independent and some of which are dependent. These concepts are an extension of hypothesis testing and confidence intervals which use statistics from one sample to make conclusions about population parameters. What to Submit Your research and analysis should be presented on the spreadsheet provided below.
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
WU The Convenience Sampling and Stress Factors Qualitative Research Quiz
QUESTION 1Dr. Smith indicated that participants in her study will: a) be Asian American, b) be males, c) be 18 years or ol ...
WU The Convenience Sampling and Stress Factors Qualitative Research Quiz
QUESTION 1Dr. Smith indicated that participants in her study will: a) be Asian American, b) be males, c) be 18 years or older, d) speak English fluently, and e) have a biological child diagnosed with some type of Attention Deficit Hyperactivity Disorder in the ages 6-12. Dr. Smith described her sampling strategy as:a.Snowball samplingb.Maximum variation samplingc.Criterion Samplingd.Convenience Sampling14.29 points QUESTION 2Which of the following is a well-stated qualitative research question?a.Is there a correlation between marital satisfaction and number of years in the marriage?b.Do attitudes toward divorce, number of years in marriage, and marital commitment predict marital satisfaction?c.Is there a significant mean difference in attitudes toward divorce between individuals who have been married for one year and individuals who have been married for more than twenty years? d.How do participants describe the experience of being married for more than twenty years?14.285 points QUESTION 3The main instrument in qualitative research is a.The problem statementb.The researcherc.The survey or standardized test d.The structure of a project14.285 points QUESTION 4Note: Read this passage and respond to questions 4-7In the past year, 52 suicides amongst First Responders such as paramedics, firefighters and rescuers were reported in the country. It was not until recently that the relationship between working as a First Responder and increased rates of Posttraumatic Stress Disorder (PTSD) and suicide was established. While considerable information exists regarding job-related stress in other occupations such as mental health workers and psychiatric staff working at emergency rooms, there is scant research on job-related stress among First Responders. Having awareness of stress triggering factors among First Responders will have the potential to alert supervisors and help in the creation of stress reduction programs or interventions targeting First Responders.Which of the following statements represent the significance of the study?a.First Responders are experiencing high level of stressb.Understanding First Responders’ stress triggering factors will alert supervisorsc.PTSD and suicide are major problems affecting First Respondersd.The relationship between PTSD and working as a First Responder has not been established 14.285 points QUESTION 5Note: Please refer to the previous passage to answer this question.Which of the following statements represent the research gap in this study?a.Stress triggering factors among First Responders are not knownb.The relationship between PTSD and working as First Responders has not been exploredc.There is a lack of stress prevention programs for First Respondersd.A job hazard analysis of First Responders’ tasks has not been conducted14.285 points QUESTION 6Note: Please refer to the previous passage to answer this question.A potential purpose statement for this study could be: The purpose of this study is to…a.Explore the relationship between PTSD and working as First Responderb.Create a stress prevention program for First Respondersc.Understand job satisfaction among First Respondersd.Explore stress triggering factors among First Responders14.285 points QUESTION 7Note: Please refer to the previous passage to answer this question.A research question for this study is: a.What is the relationship between developing PTSD and working as a First Responder? b.What type of stress prevention program fits First Responders’ needs? c.Are First Responders satisfied with their jobs?d.How do First Responders describe job related stress factors?
1 page
Answer
The computed value for t = +3.28 is the computed difference that is relative to the variation in given sample data. The gr ...
Answer
The computed value for t = +3.28 is the computed difference that is relative to the variation in given sample data. The greater the computed value for ...
STA 3215 ARCC Inferential Statistics and Analytics Paper
STA3215CBE Section 02CBE Inferential Statistics and Analytics (11 Weeks) - CBE - 2021 Fall Quarte
Deliverable 5 - Hypothes ...
STA 3215 ARCC Inferential Statistics and Analytics Paper
STA3215CBE Section 02CBE Inferential Statistics and Analytics (11 Weeks) - CBE - 2021 Fall Quarte
Deliverable 5 - Hypothesis Tests for Two Samples item options
Assignment Content
Competency
Evaluate hypothesis tests for population parameters from two populations. Student Profile
You are a statistician working for a drug company. A few new scientists have been hired by your company. They are experts in pharmacology, but are not experts in doing statistical studies, so you will explain to them how statistical studies are done when testing two samples for the effectiveness of a new drug. The two samples can be dependent or independent, and you will explain the difference. Concept being Studied
Your focus is on hypothesis tests and confidence intervals for two populations using two samples, some of which are independent and some of which are dependent. These concepts are an extension of hypothesis testing and confidence intervals which use statistics from one sample to make conclusions about population parameters. Student Success Criteria
9 pages
Patterns And Modeling 2
It is vital to understand the functionality and significance of the bivariate and multiple regression models. However, it ...
Patterns And Modeling 2
It is vital to understand the functionality and significance of the bivariate and multiple regression models. However, it is precise that where the ...
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