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Walden University Ch 12 & 2 GEneral Social Survey Dataset Research Question
To prepare for this Discussion: Review Warner’s Chapter 12 and Chapter 2 of the Wagner course text and the media prog ...
Walden University Ch 12 & 2 GEneral Social Survey Dataset Research Question
To prepare for this Discussion: Review Warner’s Chapter 12 and Chapter 2 of the Wagner course text and the media program found in this week’s Learning Resources and consider the use of dummy variables. Create a research question using the General Social Survey dataset that can be answered by multiple regression. Using the SPSS software, choose a categorical variable to dummy code as one of your predictor variables. Estimate a multiple regression model that answers your research question. Post your response to the following: What is your research question? Interpret the coefficients for the model, specifically commenting on the dummy variable. Run diagnostics for the regression model. Does the model meet all of the assumptions? Be sure and comment on what assumptions were not met and the possible implications. Is there any possible remedy for one the assumption violations?
I need the answer to this simple math question from Probability.
1.
A store sells 12 different kinds of
bathtubs. These data represent the maximum number of lite ...
I need the answer to this simple math question from Probability.
1.
A store sells 12 different kinds of
bathtubs. These data represent the maximum number of liters of water that the
bathtubs will hold.
240, 272, 280, 285, 295, 285, 300, 290, 310, 305, 285, 305
(a) Compute
the five-number summary for these data. Show all your work.
(b) Identify
all outliers of the data set. Use the values of the upper and lower fences to
explain your answer.
(c) Create
a modified box plot for the bathtub data.Thank you!!!
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Part A: Roll a single die 50 times and record the results. Now use that data set to compute the mean, median, mode, varian ...
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Part A: Roll a single die 50 times and record the results. Now use that data set to compute the mean, median, mode, variance, and standard deviation ...
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A research was interested in testing the effects of caffeine on word recall. For the study the researcher recruited 24 mal ...
I need help with some computations
A research was interested in testing the effects of caffeine on word recall. For the study the researcher recruited 24 males and 24 females from 18-30 years of age and 24 males and 24 females over 65 years of age. Within each age and gender, 6 participants were randomly assigned to one of 4 doses of caffeine, either a placebo, 1 cup of coffee, 2 cups of coffee or 3 cups of coffee. So we end with a 2 (age) x 2(gender) x 4(Caffeine) design with 6 people in a group. The data for the study is listed below.
Grantham University Confidence Interval Proportion of Schools Project
Project Assignment Part 1For these project assignments throughout the course you will need to reference the data in the R ...
Grantham University Confidence Interval Proportion of Schools Project
Project Assignment Part 1For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadsheet. Download it here.Using the ROI data set:For each of the 2 majors consider the ‘School Type’ column. Assuming the requirements are met, construct a 90% confidence interval for the proportion of the schools that are ‘Private’. Be sure to interpret your results.For each of the 2 majors construct a 95% confidence interval for the mean of the column ‘Annual % ROI’. Be sure to interpret your results.Project Assignment Part 2For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadsheet. Download it here.Using the ROI data set:For each of the 2 majors test the hypothesis at the 5% significance level:The mean ‘Cost’ for a college is $160,000. Be sure to interpret your results.For Business versus Engineering majors conduct a two sample test of the hypothesis at the 10% significance level (assume the variances are not equal):The average ’30-Year ROI’ for Business majors is less than for Engineering Majors. Be sure to interpret your results.Project Assignment Part 3For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadsheet. Download it here.Using the ROI data set:For each of the two majors:Draw the scatter diagram of Y = ‘Annual % ROI’ against X = ‘Cost’.Obtain b0 and b1 of the regression equation defined as y ̂ = b0 + b1X and the coefficient of determination (r2) from the Excel regression output. Draw the fitted regression line on the scatter diagram.Calculate the estimated ‘Annual % ROI’ when the ‘Cost’ (X) is $160,000.Test the hypothesis: oH0: β1 = 0oHa: β1 ≠ 0Write a paragraph or more on any observations you make about the regression estimates, coefficient of determination, the plots, and the results of your hypothesis tests.Project Assignment Part 4Write a minimum 4 page report explaining the results from your analysis of the ROI of Business Majors and Engineering Majors. Use your results from each week’s assignment to make this report.This report should include:A detailed description of the data used in this analysis – specifically explain what the data in each column represents.A detailed explanation of any information learned about:School Type for each major; The Cost for each major;The 30 Year ROI for each major;The Annual % ROI for each major.Explanations should be supported with the results obtained from your work in previous weeks.Finally, answer the following questions and support your answer with your results.Does there appear to be a particular major that gives a better ROI? Why or Why not? Given that we are using statistical inference to make our conclusions, is it guaranteed that the major you choose that gave a better ROI for this sample will always have a better ROI than the other major? Explain your reasoning
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Walden University Ch 12 & 2 GEneral Social Survey Dataset Research Question
To prepare for this Discussion: Review Warner’s Chapter 12 and Chapter 2 of the Wagner course text and the media prog ...
Walden University Ch 12 & 2 GEneral Social Survey Dataset Research Question
To prepare for this Discussion: Review Warner’s Chapter 12 and Chapter 2 of the Wagner course text and the media program found in this week’s Learning Resources and consider the use of dummy variables. Create a research question using the General Social Survey dataset that can be answered by multiple regression. Using the SPSS software, choose a categorical variable to dummy code as one of your predictor variables. Estimate a multiple regression model that answers your research question. Post your response to the following: What is your research question? Interpret the coefficients for the model, specifically commenting on the dummy variable. Run diagnostics for the regression model. Does the model meet all of the assumptions? Be sure and comment on what assumptions were not met and the possible implications. Is there any possible remedy for one the assumption violations?
I need the answer to this simple math question from Probability.
1.
A store sells 12 different kinds of
bathtubs. These data represent the maximum number of lite ...
I need the answer to this simple math question from Probability.
1.
A store sells 12 different kinds of
bathtubs. These data represent the maximum number of liters of water that the
bathtubs will hold.
240, 272, 280, 285, 295, 285, 300, 290, 310, 305, 285, 305
(a) Compute
the five-number summary for these data. Show all your work.
(b) Identify
all outliers of the data set. Use the values of the upper and lower fences to
explain your answer.
(c) Create
a modified box plot for the bathtub data.Thank you!!!
4 pages
20200921074403topic 4 Dq 2 Mat Gcu 1
Part A: Roll a single die 50 times and record the results. Now use that data set to compute the mean, median, mode, varian ...
20200921074403topic 4 Dq 2 Mat Gcu 1
Part A: Roll a single die 50 times and record the results. Now use that data set to compute the mean, median, mode, variance, and standard deviation ...
I need help with some computations
A research was interested in testing the effects of caffeine on word recall. For the study the researcher recruited 24 mal ...
I need help with some computations
A research was interested in testing the effects of caffeine on word recall. For the study the researcher recruited 24 males and 24 females from 18-30 years of age and 24 males and 24 females over 65 years of age. Within each age and gender, 6 participants were randomly assigned to one of 4 doses of caffeine, either a placebo, 1 cup of coffee, 2 cups of coffee or 3 cups of coffee. So we end with a 2 (age) x 2(gender) x 4(Caffeine) design with 6 people in a group. The data for the study is listed below.
Grantham University Confidence Interval Proportion of Schools Project
Project Assignment Part 1For these project assignments throughout the course you will need to reference the data in the R ...
Grantham University Confidence Interval Proportion of Schools Project
Project Assignment Part 1For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadsheet. Download it here.Using the ROI data set:For each of the 2 majors consider the ‘School Type’ column. Assuming the requirements are met, construct a 90% confidence interval for the proportion of the schools that are ‘Private’. Be sure to interpret your results.For each of the 2 majors construct a 95% confidence interval for the mean of the column ‘Annual % ROI’. Be sure to interpret your results.Project Assignment Part 2For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadsheet. Download it here.Using the ROI data set:For each of the 2 majors test the hypothesis at the 5% significance level:The mean ‘Cost’ for a college is $160,000. Be sure to interpret your results.For Business versus Engineering majors conduct a two sample test of the hypothesis at the 10% significance level (assume the variances are not equal):The average ’30-Year ROI’ for Business majors is less than for Engineering Majors. Be sure to interpret your results.Project Assignment Part 3For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadsheet. Download it here.Using the ROI data set:For each of the two majors:Draw the scatter diagram of Y = ‘Annual % ROI’ against X = ‘Cost’.Obtain b0 and b1 of the regression equation defined as y ̂ = b0 + b1X and the coefficient of determination (r2) from the Excel regression output. Draw the fitted regression line on the scatter diagram.Calculate the estimated ‘Annual % ROI’ when the ‘Cost’ (X) is $160,000.Test the hypothesis: oH0: β1 = 0oHa: β1 ≠ 0Write a paragraph or more on any observations you make about the regression estimates, coefficient of determination, the plots, and the results of your hypothesis tests.Project Assignment Part 4Write a minimum 4 page report explaining the results from your analysis of the ROI of Business Majors and Engineering Majors. Use your results from each week’s assignment to make this report.This report should include:A detailed description of the data used in this analysis – specifically explain what the data in each column represents.A detailed explanation of any information learned about:School Type for each major; The Cost for each major;The 30 Year ROI for each major;The Annual % ROI for each major.Explanations should be supported with the results obtained from your work in previous weeks.Finally, answer the following questions and support your answer with your results.Does there appear to be a particular major that gives a better ROI? Why or Why not? Given that we are using statistical inference to make our conclusions, is it guaranteed that the major you choose that gave a better ROI for this sample will always have a better ROI than the other major? Explain your reasoning
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