Correlation between the resting and after-exercising heart rates to determine if a linear relationship exists between the two variables and how strong the relationship is.

In this lesson, you will run a correlation between the resting and after-exercising heart rates to determine if a linear relationship exists between the two variables and how strong the relationship is.

Steps

1. Open the Heart Rate Data Set in Excel and identify the X-variable (resting heart rates for all 200 participants) and the Y-variable (after-exercise heart rates for all 200 participants).
2. Use the Scatter Plot function in the Insert Charts section of Excel to create a scatter plot of the X and Y variables.
3. Add a trendline to the scatter plot.
4. Use the Data Analysis tools in Excel to find the regression equation.
5. In a Word document, describe the relationship between the X-variable (resting heart rate)and the Y-variable (after exercise heart rate).
   • Graph the scatter plot with a trend line. Does it appear there is a linear relationship?  What does this mean?
   • Calculate the correlation coefficient r using excel. Is this r (value) high compared to +1?  Based on the correlation coefficient is the relationship strong?
   • Use excel to find the regression equation. Identify the slope.  What does it tell us in terms of our heart rate data?

Additional Instructions:

Your assignment should be typed into a Word or other word processing document, formatted in APA style. The assignments must include

Answer

1. A description of the relationship between the X-variable (resting heart rate) and the Y-variable (after exercise heart rate), including whether or not there appears to be a linear relationship and any patterns or trends observed in the data.
2. A graph of the scatter plot with a trend line, labeled appropriately.
3. The correlation coefficient r, including whether or not it is high compared to +1 and whether the relationship is strong based on this value.
4. The regression equation, including the slope and what it tells us about the heart rate data.

To start, open the Heart Rate Data Set in Excel and identify the X-variable (resting heart rates for all 200 participants) and the Y-variable (after-exercise heart rates for all 200 participants). These should be two columns in the …Order a customized and more comprehensive answer here

Next, use the Scatter Plot function in the Insert Charts section of Excel to create a scatter plot of the X and Y variables. This will plot each participant’s resting heart rate on the X-axis and their after-exercise heart …Order a customized and more comprehensive answer here

After creating the scatter plot, add a trendline to it by right-clicking on one of the data points and selecting “Add Trendline.” This will display a line on the graph that shows the overall trend of the data.

Now, use the Data Analysis tools in Excel to find the regression equation. This equation will show the linear relationship between the X and Y variables, and will be in …Order a customized and more comprehensive answer here