2. To help determine how many beers to stock the concession manager at Yankee Stadium wanted to know how the temperature affected beer sales. Accordingly, she took a sample of 10 games and recorded the number of beers sold and the temperature in the middle of the game. Temperature 80 68 78 79 87 Number of 20,533 1,439 13,829 21,286 30,985 beers Temperature 74 86 92 77 84 Number of 17,187 30,240 37,596 9,610 28,742 beers

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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2. To help determine how many beers to stock the concession manager at Yankee Stadium
wanted to know how the temperature affected beer sales. Accordingly, she took a sample of 10
games and recorded the number of beers sold and the temperature in the middle of the game.
Temperature 80
68
78
79
87
Number of
20,533
1,439
13,829
21,286
30,985
beers
Temperature 74
86
92
77
84
Number of
17,187
30,240
37,596
9,610
28,742
beers
a. Predict with 90% confidence the number of beers to be sold when temperature is 75
degrees.
b. Calculate and plot the residuals and predicted values of y.
Transcribed Image Text:2. To help determine how many beers to stock the concession manager at Yankee Stadium wanted to know how the temperature affected beer sales. Accordingly, she took a sample of 10 games and recorded the number of beers sold and the temperature in the middle of the game. Temperature 80 68 78 79 87 Number of 20,533 1,439 13,829 21,286 30,985 beers Temperature 74 86 92 77 84 Number of 17,187 30,240 37,596 9,610 28,742 beers a. Predict with 90% confidence the number of beers to be sold when temperature is 75 degrees. b. Calculate and plot the residuals and predicted values of y.
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