(14 Marks) A student performs the following experiment with a cellphone. First the student puts the cellphone on a pedestal, and observes the received signal power PA110 dBm. The student then removes the pedestal and holds the phone tightly on the same location, and observes the received signal power PB-119 dBm. a. What is the attenuation (reduction in dB) caused by tightly holding phone? b. Compute the ratio of (Power received by tightly holding phone)/ (Power received when phone is on pedestal) using absolute power (not in decibel). c. What percentage reduction of absolute power occurred once the phone was tightly held