The following table shows the hot dogs bought from a street vendor over the cour

Question

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) 22|12 |2316 5 12 17|21 4730 36 42 17 2243 31 Demand a. Calculate the slope and y-intercept for the linear regression equation for these data. ^-13.08 + ( 1.28)x (Round to two decimal places as needed.) b. Predict the demand for hot dogs on a day with a temperature of 6°c The predicted demand for hot dogs on a day with a temperature of 6 c is Round to the nearest integer as needed.)

Explanation / Answer

Regression equation is given

y = 13.08 + ( 1.28 ) * x

We want to predict demand for hot dogs on the day with a temperature 6 °C

x = 6

y = 13.08 + ( 1.28 ) * 6

y = 20.76 ~ 21

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