Kizspy | Question: 77
(Choose 1 answer)
(See picture)
A. -4.7134
B. -1.8940
C. 0.9795
D. 13.3561
E. None of the other choices is correct
It is believed that, the average numbers of hours spent studying per
day (HOURS) during undergraduate education should have a
positive linear relationship with the starting salary (SALARY,
measured in thousands of dollars per month) after graduation. Given
below is the Excel output for predicting starting salary (Y) using
number of hours spent studying per day (X) for a sample of 51
students.
NOTE: Only partial output is shown.
Regression Statistics
Multiple R
0.8857
R Square
0.7845
Adjusted R Square
0.7801
Standard Error
13704
Observations
ANOVA
df
SS
MS
Significance.
Regression
Residual
1
335.0472 335.04178.3859
1.8782
Total
50
427.0798
Intercept
Hours
Coefficients Standard Error 1 Stat P-value Lower 95% Upper 95%
-1.8940
09795
0.4018-4.7134 0.0000
0.0733 13.3561 0.0000
-2.7015
0.8321
-1.0865
1.1269
The value of the measured t-test statistic to test whether mean
SALARY depends linearly on HOURS is
