MM207M3: Determine the relationship between two variables. GEL-1.02: Demonstrate college-level communication through the composition of original materials in Standard English.

Excel is an excellent and powerful tool that can be used to investigate correlation and regression. For this assignment, complete the following. Choose any Excel dataset from Content > Course Resources. 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 correlation coefficient (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, substitute 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 of your work. In other words, type out the equation, substitute a value for x, and show your solution for y. Write 2 – 3 paragraphs that describe what your equation represents. Discuss which variable is the independent variable and which is the dependent variable. Why do you think the dependent variable might “depend” on the independent variable? Explain how your equation can be used to estimate values for the dependent variable. Finally, explain the difference between correlation and cause. Give an example of two variables that are related, but are not causal. Your paragraphs should follow the conventions of Standard English (correct grammar, punctuation, and spelling). Your writing should be well ordered, logical and unified, as well as original and insightful. In addition to fulfilling the specifics of the Assignment, APA citation style* should be followed.