Question

Cricket Chirps

The dataset shows 15 observations of the relationship between cricket chirps (measured in chirps per second) and outside ground temperature (in Fahrenheit).

1. Create a scatterplot by putting chirps on the vertical axis and temperature on the horizontal axis. Be sure to properly label the scatterplot with a title, axes titles, and the proper units of the variables.

2. Estimate the following relationship: ?h????=?0+?1???????????(Chirps) ̂=b_0+b_1 Temperature.

3. Interpret the slope in the context of the problem.

4. Interpret the R-square in the context of the problem.

5. Predict the number of cricket chirps when the outside ground temperature is 80 degrees F.   Round your answer to one decimal place.

Temperature	Chirps
88.6	20
71.6	16
93.3	19.8
84.3	18.4
80.6	17.1
75.2	15.5
69.7	14.7
71.6	15.7
69.4	15.4
83.3	16.3
79.6	15
82.6	17.2
80.6	16
83.5	17
76.3	14.4

Answer 1