Question

Does Elevation Affect Temperature Mid-June?
Suppose that you wanted to determine the effect, if any, that elevation has on temperature. The table below lists the elevations (in feet above sea level) of 24 randomly selected cities in the United States and the low temperatures (in degrees Fahrenheit) of these cities on June 15, 2020.

Elevation	1365	−282	5280	4551	6910	6063	3875	2730	7	1201	2001	1843
Low Temp.	56	79	56	56	39	55	42	51	74	63	73	48
Elevation	3202	2389	4226	1550	2134	2080	−7	141	909	50	338	1086
Low Temp.	64	73	56	53	58	57	80	55	74	56	69	78

1. If Westerville is 875 feet above sea level, what is Westerville’s estimated low temperature for June 15, 2020?

2. Before performing any regression analyses, what is the benefit of noting that the lowest and highest values amongst the elevation data are −282 feet and 6910 feet, respectively?

3. What proportion of the variation in low temperatures can be explained by the linear relationship with elevation?

Give one example of a lurking variable that may also influence the response variable in this situation

Answer 1