in the first part of this project, you want to test if, before the introduction of caloric labeling, the daily caloric intake by students dining in dining halls a and b was indeed similar. to do this, start by calculating the number of students surveyed at each dining hall. in cell f2, input the number of students surveyed in dining hall a; in cell g2, input the number of students surveyed in dining hall b. (hint: use the countif function in excel). calculate sample mean of the caloric intake for students dining in a and b. input your results in cells f3 and g3 respectively. calculate the observed sample variance of the caloric intake for students dining in a and b. input your results in cells f4 and g4 respectively. (use the var.s function in excel).