Homework Help: sdu

Posted by Anonymous on Saturday, April 21, 2012 at 7:58pm.

. A man finds that two things cause him to wake up at night-noise or indigestion. If it is due to noise, the time to fall asleep again has exponential distribution with rate 5 per hour, and if it is due to indigestion the time to fall asleep again has exponential distribution with rate 2 per hour . When he is asleep, he stays asleep for an exponentially distributed time with mean 2 hours. Assuming the waking and sleeping perids are all independent of each other and that each time he wakes up it is due to noise with probability 2/3 and indigestion with probability 1/3, what proportion of time is he up because of indigestion and spend s ofn sleeping?

sdu - Ms. Sue, Saturday, April 21, 2012 at 8:02pm
What on earth is sdu?
Let's call it applied statistics - Damon, Saturday, April 21, 2012 at 8:05pm
but it would take me a sleepless night to figure it out :(
sdu - Ms. Sue, Saturday, April 21, 2012 at 8:06pm
LOL!
To Damon - Reiny, Saturday, April 21, 2012 at 9:18pm
Best answer I have seen in a week !!!
sdu - Anonymous, Saturday, April 21, 2012 at 10:58pm
xyz

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