The following results are from data concerning the amount withdrawn from an ATM machine based on the amount of time spent at the ATM machine (SECONDS) and the gender, FEMALE (dummy variable = 1 for females and = 0 for males) and an interaction term, SECONDS*FEMALE

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The following results are from data concerning the amount withdrawn from an ATM machine based on the amount of time spent at the ATM machine (SECONDS) and the gender, FEMALE (dummy variable = 1 for females and = 0 for males) and an interaction term, SECONDS*FEMALE

 

SUMMARY OUTPUT
 
 
 
 
 
 
 
 
 
 
 
 
 
Regression Statistics
 
 
 
 
 
 
 
Multiple R
0.503
 
 
 
 
 
R Square
 
 
 
 
 
 
Adjusted R Square
 
 
 
 
 
 
Standard Error
 
 
 
 
 
 
Observations
50
 
 
 
 
 
 
 
 
 
 
 
 
ANOVA
 
 
 
 
 
 
 
df
SS
MS
F
Significance F
 
Regression
 
 
2728.7
5.19
0.004
 
Residual
 
24161.8
525.3
 
 
 
Total
 
32348
 
Coefficients
Standard Error
t Stat
P-value
Lower 95%
Upper 95%
Intercept
137.6
23.51
5.89
0
91.03
185.67
Seconds
-1.9
0.617
 
0.002
-3.401
-0.839
Female
-65.5
30.5
-2.26
 
-137.33
-8.07
Seconds*Female
2.4
0.87
2.8
0.007
0.67
 

 
Based on the regression results, when testing to see if the coefficient on FEMALE is different than -90, what is the test statistic? (please express your answer using 2 decimal places)
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