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 21 12 23 19 8 11 18 22
Demand 48 30 36 42 17 25 41 35
a. Calculate the slope and y-intercept for the linear regression equation for these data. y=+x (Round to two decimal places as needed.)
b. Predict the demand for hot dogs on a day with a temperature of 10 degrees Upper C°C.
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