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look up the normal distribution table, z = 0.35
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Linear Regressions
Choose any Excel Discussion dataset. Include the name of the dataset. From that dataset, select any two quantitative varia ...
Linear Regressions
Choose any Excel Discussion dataset. Include the name of the dataset. From that dataset, select any two quantitative variables that you suspect will be related (such as age and height for example). What is the name of the dataset you have chosen? Which two variables did you choose?Next, using Excel, calculate the relationship (r value) between the two variables. Recall that the Excel “formula” for correlation is “=CORREL.” What is the r value for the two variables that you have chosen? Is it positive or negative? Is it strong, medium, or weak? Note that it is best to have an r value that is medium or strong. It is recommended that you try a few different variables until you find two variables with an r value between .5 and 1 (or between -.5 and -1).Next, use Excel to create a scatterplot for the two variables. You decide which variable will be dependent (y) and which will be independent (x). On the scatterplot, include the “trendline” and the “equation for the line” using Excel options. Attach your scatterplot to your post.Finally, using the equation of the line that you generated above, plug in any reasonable value for x (your chosen independent variable) and solve the equation for y (your chosen dependent variable). It is up to you to determine which of your two variables is x and which is y. What prediction do you get? Show all your work. In other words, type out the equation, plug in a value for x, and show your solution for y.
300 words about minimum or maximum function
Select either the minimum or maximum function. Identify a task - personal or professional - that could be modeled mathemat ...
300 words about minimum or maximum function
Select either the minimum or maximum function. Identify a task - personal or professional - that could be modeled mathematically through your chosen function. Explain how the chosen function be used in making good decisions.Examples of tasks might be:Make the largest garden possible using a given amount of fencing.Configure an airplane to create the least amount of drag for an airplane in flight. Be creative!
Write & SubmitWrite a 300-word post (about 3 paragraphs) that includes your chosen function, shows an equation and explains how it could be used to make good decisions.
10 pages
Answer
Edwards Manufacturing Company purchases two component parts from three different suppliers. The suppliers have limited cap ...
Answer
Edwards Manufacturing Company purchases two component parts from three different suppliers. The suppliers have limited capacity, and no one supplier ...
Statistical Significance and Meaningfulness
Once you start to understand how exciting the world of statistics can be, it is tempting to fall into the trap of chasing ...
Statistical Significance and Meaningfulness
Once you start to understand how exciting the world of statistics can be, it is tempting to fall into the trap of chasing statistical significance. That is, you may be tempted always to look for relationships that are statistically significant and believe they are valuable solely because of their significance. Although statistical hypothesis testing does help you evaluate claims, it is important to understand the limitations of statistical significance and to interpret the results within the context of the research and its pragmatic, “real world” application.As a scholar-practitioner, it is important for you to understand that just because a hypothesis test indicates a relationship exists between an intervention and an outcome, there is a difference between groups, or there is a correlation between two constructs, it does not always provide a default measure for its importance. Although relationships are significant, they can be very minute relationships, very small differences, or very weak correlations. In the end, we need to ask whether the relationships or differences observed are large enough that we should make some practical change in policy or practice.For this Discussion, you will explore statistical significance and meaningfulness.To prepare for this Discussion:Review the attached learning resources related to hypothesis testing, meaningfulness, and statistical significance.Review Magnusson’s web blog to further your visualization and understanding of statistical power and significance testing. http://rpsychologist.com/index.htmlConsider the scenario:A research paper claims a meaningful contribution to the literature based on finding statistically significant relationships between predictor and response variables. In the footnotes, you see the following statement, “given this research was exploratory in nature, traditional levels of significance to reject the null hypotheses were relaxed to the .10 level.”Post your response to the scenario in which you critically evaluate this footnote. As a reader/reviewer, what response would you provide to the authors about this footnote? Follow the attached guidelines for assistance when completing the assignment.
3 pages
Unit 5 Project
1. A projectile is fired upward from the ground with an initial velocity of 300 feet per second. Neglecting air resistance ...
Unit 5 Project
1. A projectile is fired upward from the ground with an initial velocity of 300 feet per second. Neglecting air resistance, the height of the ...
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Most Popular Content
Linear Regressions
Choose any Excel Discussion dataset. Include the name of the dataset. From that dataset, select any two quantitative varia ...
Linear Regressions
Choose any Excel Discussion dataset. Include the name of the dataset. From that dataset, select any two quantitative variables that you suspect will be related (such as age and height for example). What is the name of the dataset you have chosen? Which two variables did you choose?Next, using Excel, calculate the relationship (r value) between the two variables. Recall that the Excel “formula” for correlation is “=CORREL.” What is the r value for the two variables that you have chosen? Is it positive or negative? Is it strong, medium, or weak? Note that it is best to have an r value that is medium or strong. It is recommended that you try a few different variables until you find two variables with an r value between .5 and 1 (or between -.5 and -1).Next, use Excel to create a scatterplot for the two variables. You decide which variable will be dependent (y) and which will be independent (x). On the scatterplot, include the “trendline” and the “equation for the line” using Excel options. Attach your scatterplot to your post.Finally, using the equation of the line that you generated above, plug in any reasonable value for x (your chosen independent variable) and solve the equation for y (your chosen dependent variable). It is up to you to determine which of your two variables is x and which is y. What prediction do you get? Show all your work. In other words, type out the equation, plug in a value for x, and show your solution for y.
300 words about minimum or maximum function
Select either the minimum or maximum function. Identify a task - personal or professional - that could be modeled mathemat ...
300 words about minimum or maximum function
Select either the minimum or maximum function. Identify a task - personal or professional - that could be modeled mathematically through your chosen function. Explain how the chosen function be used in making good decisions.Examples of tasks might be:Make the largest garden possible using a given amount of fencing.Configure an airplane to create the least amount of drag for an airplane in flight. Be creative!
Write & SubmitWrite a 300-word post (about 3 paragraphs) that includes your chosen function, shows an equation and explains how it could be used to make good decisions.
10 pages
Answer
Edwards Manufacturing Company purchases two component parts from three different suppliers. The suppliers have limited cap ...
Answer
Edwards Manufacturing Company purchases two component parts from three different suppliers. The suppliers have limited capacity, and no one supplier ...
Statistical Significance and Meaningfulness
Once you start to understand how exciting the world of statistics can be, it is tempting to fall into the trap of chasing ...
Statistical Significance and Meaningfulness
Once you start to understand how exciting the world of statistics can be, it is tempting to fall into the trap of chasing statistical significance. That is, you may be tempted always to look for relationships that are statistically significant and believe they are valuable solely because of their significance. Although statistical hypothesis testing does help you evaluate claims, it is important to understand the limitations of statistical significance and to interpret the results within the context of the research and its pragmatic, “real world” application.As a scholar-practitioner, it is important for you to understand that just because a hypothesis test indicates a relationship exists between an intervention and an outcome, there is a difference between groups, or there is a correlation between two constructs, it does not always provide a default measure for its importance. Although relationships are significant, they can be very minute relationships, very small differences, or very weak correlations. In the end, we need to ask whether the relationships or differences observed are large enough that we should make some practical change in policy or practice.For this Discussion, you will explore statistical significance and meaningfulness.To prepare for this Discussion:Review the attached learning resources related to hypothesis testing, meaningfulness, and statistical significance.Review Magnusson’s web blog to further your visualization and understanding of statistical power and significance testing. http://rpsychologist.com/index.htmlConsider the scenario:A research paper claims a meaningful contribution to the literature based on finding statistically significant relationships between predictor and response variables. In the footnotes, you see the following statement, “given this research was exploratory in nature, traditional levels of significance to reject the null hypotheses were relaxed to the .10 level.”Post your response to the scenario in which you critically evaluate this footnote. As a reader/reviewer, what response would you provide to the authors about this footnote? Follow the attached guidelines for assistance when completing the assignment.
3 pages
Unit 5 Project
1. A projectile is fired upward from the ground with an initial velocity of 300 feet per second. Neglecting air resistance ...
Unit 5 Project
1. A projectile is fired upward from the ground with an initial velocity of 300 feet per second. Neglecting air resistance, the height of the ...
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