The following table shows the hot dogs bought from a street vendor over the course of eight days ("Demand"). Also shown is the temperature for each day in degrees Celsius. Complete parts a and b below.
Temperature °C |
18 |
10 |
22 |
17 |
7 |
14 |
17 |
19 |
|
---|---|---|---|---|---|---|---|---|---|
DemandDemand |
47 |
31 |
35 |
38 |
16 |
22 |
40 |
31 |
a. Calculate the slope and y-intercept for the linear regression equation for these data.
The statistical software output for this problem is :
Slope = 1.3588
y intercept = 11.4382
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