Resource reservation protocol (RSVP) was originally designed to establish signal

Question

Resource reservation protocol (RSVP) was originally designed to establish signaling links for stationary networks. In Mobile Networks and Applications (Dec. 2003), RSVP was applied to mobile wireless technology (e.g., a PC notebook with wireless LAN card for Internet access). A simulation study revealed that the transmission delay (measured in milliseconds) of an RSVP-linked wireless device has an approximate normal distribution with mean = 48 milliseconds and = 10 milliseconds. What is the probability that the transmission delay is between 20 and 60 milliseconds?

Explanation / Answer

Resource reservation protocol (RSVP) was originally designed to establish signaling links for stationary networks. In Mobile Networks and Applications (Dec. 2003), RSVP was applied to mobile wireless technology (e.g., a PC notebook with wireless LAN card for Internet access). A simulation study revealed that the transmission delay (measured in milliseconds) of an RSVP-linked wireless device has an approximate normal distribution with mean = 48 milliseconds and = 10 milliseconds. What is the probability that the transmission delay is between 20 and 60 milliseconds?

Z value for 20, z=(20-48)/10 =-2.8

Z value for 60, z=(60-48)/10 =2.8

P( 20<x<60)= P( -2.8< z<2.8)

P( z <2.8) – P( z <-2.8)

= 0.9974 - 0.0026

= 0.9948

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