(Solution) - A researcher recorded the rate at which a cricket chirps -(2025 Original AI-Free Solution)

Paper Details

A researcher recorded the rate at which a cricket chirps for various temperatures. A random selection of the data is shown in Table 13.

Let R be the chirp rate (number of chirps per 13 seconds) when the temperature is F degrees Fahrenheit.
a. Identify the explanatory and response variables.
b. Construct a scatterplot by hand.
c. Is the association positive, negative, or neither? What does that mean in this situation?
d. Graph the model R = 1.02F - 38.03 by hand on the scatterplot. Does the line come close to the data points?
e. Use the model to predict the chirp rate when the temperature is 70°F.