If one person with coronavirus infects 6 people in 1 hour and those 6 people infect another 6 people in 1 hour. How many people will be infected in 1 day (24 hours)?

a) The whole population
b) You have coronavirus
c) I need water bottles! There's none in stores!
d) I need toilet paper! There's none in stores!
e) Will trade my Ferrari for a role of paper and a water bottle.

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.