Question

The following table shows the hot dogs bought from a street vendor over the course of...

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

11

22

16

7

10

16

20

Demand

48

29

36

40

17

22

43

31

a. Calculate the slope and y-intercept for the linear regression equation for these data.

y with caret = _____+(____) x

Homework Answers

Answer #1

X Y X⋅Y X⋅X
18 48 864 324
11 29 319 121
22 36 792 484
16 40 640 256
7 17 119 49
10 22 220 100
16 43 688 256
20 31 620 400

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