2 separate questions please answer both

(b) (4 points) The perfect fill? A soda filling machine at Mcdonald's is supposed to dispense ice and 14 oz. of liquid into a medium sized cup. The machine will fluctuation (sometimes above and sometimes below). The machine is supposed to have a variability below 0.05 oz. A quality control engineer takes a sample of 20 drinks to determine if the machine is broken (dispensing drinks with a higher variability in ounces). (c) (4 points) Return to Campus? Last-year it was found that 72% of GCC students support support the return of in-person classes. However, the student's are not enrolling in our in-person courses, causing us to feel the support the return to in-person classes has decreased since then