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categoryالرياضيات
schoolبكالوريوس
event_available2026-07-15
السؤال
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Question 5
4 pts
A stadium manager wants to understand how outdoor temperature affects beverage sales.
Data from 9 games played at the stadium were collected and are summarized below. Using
the summarized information, calculate the coefficient of determination, the standard error of
the regression, the standard error of the slope coefficient and calculated t statistic from a
hypothesis test on the slope where the null states the population slope - 0.
sum of temperature 536.7000
sum of squared temperature (each temp is squared before summing) - 35.986.8100
sum of beverage sales - 31,258.0000
sum of squared beverage sales (each sales figure is squared before summing) -
109,566,700.0000
sum of temperature times sales (each temp is multiplied by its corresponding sales before
summing) 1.905.552.9000
coefficient of determination -0.6569, standard error of reg - 285.5891, standard error of slope
570,928.1208, calculated t -2.3048
coefficient of determination -0.6569, standard error of reg 285.5891. standard error of slope
4.5260, calculated t 2.3048
coefficient of determination 0.4315. standard error of reg 285.5891, standard error of slope-
4.5260, calculated t-2.3048
coefficient of determination 0.4315, standard error of reg 4.5260, standard error of slope -
285.5891, calculated t 2.3646
coefficient of determination 0.4315, standard error of reg- 570.928.1208, standard error of slope
-285.5891. calculated t-2.3646
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