Karen has some important research to do for her doctoral thesis. So$,$ for her research she orders a textbook online and pays extra for a delivery service that will get the book to her doorstep in under $24$ hours. The deliverer allows Karen to track her order online, so she can sign for the parcel when it arrives, which it does $-$ in just $16$ hours. What expectation level do you think this service has satisfied? What expectation level do you think this service has satisfied?