A sleep specialist wants to know if meditating before you go to sleep can help you fall asleep. She conducted a study where people would record how many minutes they meditated before getting into bed and how many minutes it took them to fall asleep. Meditation Time 39 46 49 52 53 12 Time to fall asleep 28 24 17 4 12 (4 points) Use the Desmos Graphing Calculator (right-click and open in a new tab/window) to calculate the following: r= y= x + If someone was to mediate for 20 minutes, what would the regression line predict for the amount of time it would take for them to fall asleep?

Question

A sleep specialist wants to know if meditating before you go to sleep can help you fall asleep. She conducted a study where people would record how many minutes they meditated before getting into bed and how many minutes it took them to fall asleep. Meditation Time 39 46 49 52 53 12 Time to fall asleep 28 24 17 4 12 (4 points) Use the Desmos Graphing Calculator (right-click and open in a new tab/window) to calculate the following: r= y= x + If someone was to mediate for 20 minutes, what would the regression line predict for the amount of time it would take for them to fall asleep?

Answer 1

To find the regression line using Desmos, follow these steps:

1. Enter the data points into the Desmos graphing calculator in two lists: x-values for meditation time and y-values for time to fall asleep
2. Click on the wrench icon in the upper right corner of the graph
3. Select "Add Item" and then "Regression"
4. Choose "Linear" as the type of regression
5. The regression line equation will be displayed on the graph

Once you have the regression line equation, you can input x=20 into the equation to find the predicted y-value (time to fall asleep) when meditating for 20 minutes.