Table 6 It is believed that, the average numbers of hours spent studying per day
ID: 2889951 • Letter: T
Question
Table 6 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 R Square Adjusted R Square Standard Error Observations 0.8857 0.7845 0.7801 1.3704 5 1 ANOVA MS Si 335.0472 333.0473 178.3839 1.8782 Total 50 427.0798 Siandard Error 95% 2.7015 0.8321 value 95% 1.0865 .1269 t Stat Intercept Hours 1.8940 0.9795 0.4018 4.7134 0.073313.3561 0,0000 0.0000 Note: 2.051E-05 -2.051 10-05 and 5.944E-18-5.944 10-18Explanation / Answer
In this question, option (b) is correct.
That is the estimated change in mean salary (in thousands of dollars) as a result of spending an extra hour per day studying is 0.9795
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