Mr. Espinoza wears an activity tracker to record the number of steps he takes each day along with several other health- related measurements. Based on these variables, the device calculates an estimate of the number of calories he bums each
day. Here is a scatterplot showing x number of steps and y - calories bumed for 31 randomly selected days, along with
additional computer output for a least-squares regression line.
67.1
0.000
Tern
CosSE Cost 7-Value P-value
Constant 1930.9
28.79
Step 0.0751 0.00608 10.93 0.000
- 103.265B-N- 80.461 R-(adj) - 79.74
(a) Describe the relationship shown in the scatterplot.
(b) Interpret the slope and y intercept.
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