c) Solve Part c) independently. Pzer has just developed a medicine for COVID to alleviate the symptoms of COVID. Still. they are concerned about the variability in the amount of time until the medicine becomes effective. In a random sample of 8 individuals who suffer from COVID, the amount of time (in hours) for the medicine to take eect was recorded. \"'3\" represents missing data and some relevant statistics are given below. Estimate with 90% condence the variability in the amount of time for the medicine to become effective. Amount of time (x): 12. 16, 9. ?, 8, 4, i'. 4 Ex = 621 2x3 = 618. Sx= 4.4320