8. Please find the multiplicities. Please check my current answers as well.
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Consumer Price Index
Open the Project Instructions and follow them to complete The following slides will then ask you to complete various • M ...
Consumer Price Index
Open the Project Instructions and follow them to complete The following slides will then ask you to complete various • Most slides will require you ...
MM 305 Purdue University Unit 8 Quantitative Variables & Linear Regression Discussion
Main Post: Consider the dataset that you analyzed in Unit 1. If your dataset did not have two quantitative variables or if ...
MM 305 Purdue University Unit 8 Quantitative Variables & Linear Regression Discussion
Main Post: Consider the dataset that you analyzed in Unit 1. If your dataset did not have two quantitative variables or if you would prefer using a different dataset, visit the dataset link to select a new data set of interest to you. See Example and DB starter video in Unit 8 LiveBinder.Determine the following information on your selected data set. Be sure to answer all questions using complete sentences.1. State the dataset and the two quantitative variables of interest. Do you think there might be a correlation between the two variables (before you analyze the data)? Why or why not.2. Create a scatterplot with a simple linear regression. Attach the scatterplot to your post.3. Run the regression analysis in Excel Data Analysis. Share the output.4. What is the coefficient of determination r2? Summarize the results by stating whether this is a strong or weak relationship. State whether it is a positive or negative relationship. Is this result what you expected?5. Use the regression analysis output to determine the linear regression (best fit prediction line) equation.
PSY 520 Grand Canyon University Bivariate Analysis Discussion
PSY-520 Graduate StatisticsTopic 3 – Benchmark – Correlation and Regression ProjectDirections: Use the following infor ...
PSY 520 Grand Canyon University Bivariate Analysis Discussion
PSY-520 Graduate StatisticsTopic 3 – Benchmark – Correlation and Regression ProjectDirections: Use the following information to complete the questions below. Use the following data points that have a linear relationship: Substance Abuse and Suicide: Percent of the Total U.S. PopulationX VARIABLEY VARIABLEYearSubstance UseSuicides19996.820.00010520006.780.00010420017.000.00010720027.120.0001120037.090.00010820047.050.0001120057.170.00010920067.240.0001120077.280.00011320087.360.00011620097.800.00011820107.810.00012120117.880.00012320127.870.00012520138.070.00012620148.120.0001320158.060.00013320168.170.00013420178.180.0001420188.230.000142Run a bivariate correlation on Substance Use and Suicides. Report the Pearson correlation coefficient. Find a linear model of the relationship between the X and Y variables and report the regression line. Provide an output of the SPSS results and interpret the results using correct APA style. In 300-500 words, address the following: Identify the predictor variable and the criterion variable. Describe the relationship between Substance Use and Suicides in terms of strength (weak/strong) and direction (positive/negative). Discuss whether you can make cause and effect statements when you get a significant correlation.
Grantham University Week 6 Symbols and Notation Questions Response
Week 6 AssignmentQuestion 1Professor Nord stated that the mean score on the final exam from all theyears he has been teach ...
Grantham University Week 6 Symbols and Notation Questions Response
Week 6 AssignmentQuestion 1Professor Nord stated that the mean score on the final exam from all theyears he has been teaching is a 79%. Colby was in his most recent class,and his class’s mean score on the final exam was 82%. Colby decided to run a hypothesis test to determine if the mean score of his class was significantly greater than the mean score of the population. α = .01.What is the mean score of the population?What is the mean score of the sample?Is this test one-tailed or two-tailed? Why?What is the null hypothesis in this case?If p = 0.29, should Colby reject or fail to reject the null hypothesis?What should Colby’s statement of conclusion be? (This circles back towhat is being tested).The next two ask you do to a hypothesis test. Remember, hypothesis tests follow a series of steps. They are not just a computer printout. Make sureif you use a computer printout, you identify which parts of the printout apply to the problem. All of the parts of the printout will NOT apply.Question 2A sample of 22 account balances of a credit company showed a mean customer balance of $4,300, but the marketing manager claimed that the mean balance for the population was $4450. The marketing manager did NOT have the population standard deviation, but the sample standard deviation was found to be $400. Use the p-value approach to conduct a full hypothesis test(all steps) that can be used to determine whether the mean of all account balances is significantly different from $4440. Let α = .05.Question 3A sample of 150 homes for sale in ABC City showed a mean asking price of $233,000, but the city claimed that the mean asking price for the population was $255,000. The population standard deviation of all homes for sale was $11,000. Use the p-value approach to conduct a full hypothesis test (all steps) that can be used to determine whether the mean asking price is significantly less than $255,000. Let α = .10.Question 4 During the recent primary elections, the democratic presidential candidate showed the following pre-election voter support in Alabama and Mississippi.StateVoters Surveyed Voters in favor of Democratic CandidateAlabama710352Mississippi 915480We want to determine whether or not the PROPORTIONS of voters favoring the Democratic candidate were the same in both states. In other words, is the first proportion (p1) the same as (p2)? What formula, from this week’s Notations and Symbols, would be applicable in the hypothesis test? (Notice you are not doing a hypothesis test – you are saying which formula applies).Project Week 6For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadheet. Download it here.For each of the 2 majors, conduct a full hypothesis test using the p-value method at the 5% significance level:The mean ‘Cost’ for a college is $165,000. The average ’30-Year ROI’ for Business majors is less than for Engineering Majors. 2. For Business versus Engineering majors conduct full hypothesis test with the p-value method. This is a two sample test of the hypothesis at the 10% significance level (assume the variances are not equal):3. In a highlighted box, explain how each hypothesis test contributes to the central question of which major would give the better ROI. Why do we need hypothesis testing? Isn't it enough to look at the sample of 20 schools and look at those numbers? What exactly does hypothesis testing do that looking at the numbers in the sample and saying "one is higher than the other" cannot do? This answer is critical to your final project. It demonstrates that you understand why you just can't look at the mean, median, and mode of the spreadsheet and "call it a day." Remember that written portions belong on a MS Word document.Hint from Dr. Klotz: Notice that you are conducting a full hypothesis test three times in this project. This is more than running a computer program. Make sure that you have all parts as discussed in the threads.
MATH136 Glendale Community Political Poll Hypothesis Tests
This discussion is based on the Logic of Hypothesis Testing activity from the Chapter 10 Student Activity Workbook accessi ...
MATH136 Glendale Community Political Poll Hypothesis Tests
This discussion is based on the Logic of Hypothesis Testing activity from the Chapter 10 Student Activity Workbook accessible from within MyLab. A pdf of the activity is attached to this discussion and can be downloaded using this link.In this activity you will use an applet to simulate a hypothesis test about a political poll. Step 1 - guided exploration with the appletFollow the steps in the attached activity document. Here's a direct link to the applet you need for this activity: https://www.statcrunch.com/app/index.php?launch=sullystats&app=politicalpoll (Links to an external site.)Step 2 - Post your thoughts on the questions in the activityPlease post to the discussion board with your answers to the questions embedded in all parts of the activity.Step 3 - Respond to at least one classmateUnlike some past discussions, I have not broken the class up into groups, and I have not set Canvas to assign you to review a particular classmate's post. You should just read your classmates' posts, and reply to anything you find noteworthy. This might be something that struck you as particularly interesting about how they answered the questions, a misconception you may have had that their post helped clarify for you, a misconception that they might have in their thinking, or anything else that stands out to you.You have to make your initial post before you can see the posts of other people in the class.
Week 7 Assignment
Question 1 Assume you have noted the following prices for paperback books and the number of pages that each book contains. ...
Week 7 Assignment
Question 1 Assume you have noted the following prices for paperback books and the number of pages that each book contains. Develop a least-squares estimated regression line. Compute the coefficient of determination and explain its meaning.Compute the correlation coefficient between the price and the number of pages. Test to see if x and y are related. Use α = 0.10.Question 2The following data represent a company's yearly sales volume and its advertising expenditure over a period of 8 years. Develop a scatter diagram of sales versus advertising and explain what it shows regarding the relationship between sales and advertising.Use the method of least squares to compute an estimated regression line between sales and advertising.If the company's advertising expenditure is $400,000, what are the predicted sales? Give the answer in dollars.What does the slope of the estimated regression line indicate?Grading Criteria AssignmentsMaximum PointsMeets or exceeds established assignment criteria40Demonstrates an understanding of lesson concepts20Clearly presents well-reasoned ideas and concepts30Uses proper mechanics, punctuation, sentence structure, and spelling10Total100
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Most Popular Content
9 pages
Consumer Price Index
Open the Project Instructions and follow them to complete The following slides will then ask you to complete various • M ...
Consumer Price Index
Open the Project Instructions and follow them to complete The following slides will then ask you to complete various • Most slides will require you ...
MM 305 Purdue University Unit 8 Quantitative Variables & Linear Regression Discussion
Main Post: Consider the dataset that you analyzed in Unit 1. If your dataset did not have two quantitative variables or if ...
MM 305 Purdue University Unit 8 Quantitative Variables & Linear Regression Discussion
Main Post: Consider the dataset that you analyzed in Unit 1. If your dataset did not have two quantitative variables or if you would prefer using a different dataset, visit the dataset link to select a new data set of interest to you. See Example and DB starter video in Unit 8 LiveBinder.Determine the following information on your selected data set. Be sure to answer all questions using complete sentences.1. State the dataset and the two quantitative variables of interest. Do you think there might be a correlation between the two variables (before you analyze the data)? Why or why not.2. Create a scatterplot with a simple linear regression. Attach the scatterplot to your post.3. Run the regression analysis in Excel Data Analysis. Share the output.4. What is the coefficient of determination r2? Summarize the results by stating whether this is a strong or weak relationship. State whether it is a positive or negative relationship. Is this result what you expected?5. Use the regression analysis output to determine the linear regression (best fit prediction line) equation.
PSY 520 Grand Canyon University Bivariate Analysis Discussion
PSY-520 Graduate StatisticsTopic 3 – Benchmark – Correlation and Regression ProjectDirections: Use the following infor ...
PSY 520 Grand Canyon University Bivariate Analysis Discussion
PSY-520 Graduate StatisticsTopic 3 – Benchmark – Correlation and Regression ProjectDirections: Use the following information to complete the questions below. Use the following data points that have a linear relationship: Substance Abuse and Suicide: Percent of the Total U.S. PopulationX VARIABLEY VARIABLEYearSubstance UseSuicides19996.820.00010520006.780.00010420017.000.00010720027.120.0001120037.090.00010820047.050.0001120057.170.00010920067.240.0001120077.280.00011320087.360.00011620097.800.00011820107.810.00012120117.880.00012320127.870.00012520138.070.00012620148.120.0001320158.060.00013320168.170.00013420178.180.0001420188.230.000142Run a bivariate correlation on Substance Use and Suicides. Report the Pearson correlation coefficient. Find a linear model of the relationship between the X and Y variables and report the regression line. Provide an output of the SPSS results and interpret the results using correct APA style. In 300-500 words, address the following: Identify the predictor variable and the criterion variable. Describe the relationship between Substance Use and Suicides in terms of strength (weak/strong) and direction (positive/negative). Discuss whether you can make cause and effect statements when you get a significant correlation.
Grantham University Week 6 Symbols and Notation Questions Response
Week 6 AssignmentQuestion 1Professor Nord stated that the mean score on the final exam from all theyears he has been teach ...
Grantham University Week 6 Symbols and Notation Questions Response
Week 6 AssignmentQuestion 1Professor Nord stated that the mean score on the final exam from all theyears he has been teaching is a 79%. Colby was in his most recent class,and his class’s mean score on the final exam was 82%. Colby decided to run a hypothesis test to determine if the mean score of his class was significantly greater than the mean score of the population. α = .01.What is the mean score of the population?What is the mean score of the sample?Is this test one-tailed or two-tailed? Why?What is the null hypothesis in this case?If p = 0.29, should Colby reject or fail to reject the null hypothesis?What should Colby’s statement of conclusion be? (This circles back towhat is being tested).The next two ask you do to a hypothesis test. Remember, hypothesis tests follow a series of steps. They are not just a computer printout. Make sureif you use a computer printout, you identify which parts of the printout apply to the problem. All of the parts of the printout will NOT apply.Question 2A sample of 22 account balances of a credit company showed a mean customer balance of $4,300, but the marketing manager claimed that the mean balance for the population was $4450. The marketing manager did NOT have the population standard deviation, but the sample standard deviation was found to be $400. Use the p-value approach to conduct a full hypothesis test(all steps) that can be used to determine whether the mean of all account balances is significantly different from $4440. Let α = .05.Question 3A sample of 150 homes for sale in ABC City showed a mean asking price of $233,000, but the city claimed that the mean asking price for the population was $255,000. The population standard deviation of all homes for sale was $11,000. Use the p-value approach to conduct a full hypothesis test (all steps) that can be used to determine whether the mean asking price is significantly less than $255,000. Let α = .10.Question 4 During the recent primary elections, the democratic presidential candidate showed the following pre-election voter support in Alabama and Mississippi.StateVoters Surveyed Voters in favor of Democratic CandidateAlabama710352Mississippi 915480We want to determine whether or not the PROPORTIONS of voters favoring the Democratic candidate were the same in both states. In other words, is the first proportion (p1) the same as (p2)? What formula, from this week’s Notations and Symbols, would be applicable in the hypothesis test? (Notice you are not doing a hypothesis test – you are saying which formula applies).Project Week 6For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadheet. Download it here.For each of the 2 majors, conduct a full hypothesis test using the p-value method at the 5% significance level:The mean ‘Cost’ for a college is $165,000. The average ’30-Year ROI’ for Business majors is less than for Engineering Majors. 2. For Business versus Engineering majors conduct full hypothesis test with the p-value method. This is a two sample test of the hypothesis at the 10% significance level (assume the variances are not equal):3. In a highlighted box, explain how each hypothesis test contributes to the central question of which major would give the better ROI. Why do we need hypothesis testing? Isn't it enough to look at the sample of 20 schools and look at those numbers? What exactly does hypothesis testing do that looking at the numbers in the sample and saying "one is higher than the other" cannot do? This answer is critical to your final project. It demonstrates that you understand why you just can't look at the mean, median, and mode of the spreadsheet and "call it a day." Remember that written portions belong on a MS Word document.Hint from Dr. Klotz: Notice that you are conducting a full hypothesis test three times in this project. This is more than running a computer program. Make sure that you have all parts as discussed in the threads.
MATH136 Glendale Community Political Poll Hypothesis Tests
This discussion is based on the Logic of Hypothesis Testing activity from the Chapter 10 Student Activity Workbook accessi ...
MATH136 Glendale Community Political Poll Hypothesis Tests
This discussion is based on the Logic of Hypothesis Testing activity from the Chapter 10 Student Activity Workbook accessible from within MyLab. A pdf of the activity is attached to this discussion and can be downloaded using this link.In this activity you will use an applet to simulate a hypothesis test about a political poll. Step 1 - guided exploration with the appletFollow the steps in the attached activity document. Here's a direct link to the applet you need for this activity: https://www.statcrunch.com/app/index.php?launch=sullystats&app=politicalpoll (Links to an external site.)Step 2 - Post your thoughts on the questions in the activityPlease post to the discussion board with your answers to the questions embedded in all parts of the activity.Step 3 - Respond to at least one classmateUnlike some past discussions, I have not broken the class up into groups, and I have not set Canvas to assign you to review a particular classmate's post. You should just read your classmates' posts, and reply to anything you find noteworthy. This might be something that struck you as particularly interesting about how they answered the questions, a misconception you may have had that their post helped clarify for you, a misconception that they might have in their thinking, or anything else that stands out to you.You have to make your initial post before you can see the posts of other people in the class.
Week 7 Assignment
Question 1 Assume you have noted the following prices for paperback books and the number of pages that each book contains. ...
Week 7 Assignment
Question 1 Assume you have noted the following prices for paperback books and the number of pages that each book contains. Develop a least-squares estimated regression line. Compute the coefficient of determination and explain its meaning.Compute the correlation coefficient between the price and the number of pages. Test to see if x and y are related. Use α = 0.10.Question 2The following data represent a company's yearly sales volume and its advertising expenditure over a period of 8 years. Develop a scatter diagram of sales versus advertising and explain what it shows regarding the relationship between sales and advertising.Use the method of least squares to compute an estimated regression line between sales and advertising.If the company's advertising expenditure is $400,000, what are the predicted sales? Give the answer in dollars.What does the slope of the estimated regression line indicate?Grading Criteria AssignmentsMaximum PointsMeets or exceeds established assignment criteria40Demonstrates an understanding of lesson concepts20Clearly presents well-reasoned ideas and concepts30Uses proper mechanics, punctuation, sentence structure, and spelling10Total100
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