A college campus physician is interested in comparing the number of cups of coffee her student-patients drink each day, depending on their job workload (no work, part-time work, full-time work). NO WORK PART-TIME FULL-TIME NUMBER X1 X2 X3 OF CUPS N OF UT UT A COFFEE W Which of the following statements would be a null hypothesis for this research scenario? Number of cups of coffee consumed per day does NOT vary by job workload. Number of cups of coffee consumed per day does vary by job workload. O Number of cups of coffee consumed per day does NOT vary by job workload, in the population. Number of cups of coffee consumed per day does vary by job workload, in the population