CLT Problems

# CLT Problems - A C Neilsen reported that chiidten between...

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Unformatted text preview: A. C. Neilsen reported that chiidten between the ages 'of 2 and 5 watch an average of 25 hours of television per week. Assume the variable is normally distributed and the standard deviation is 3 hours. IfZO children between the ages of 2 and 5 are randomjy selected, ﬁnd the probability that the mean of the number of hours they watch television will be greater than 26.3 hours. The average age of a vehicle registered in the United States is 8 years, or 9o months. Assume the standard deviation is 16 months. If a random sample of 36 VChIClES is selected, ﬁnd the probabitity that the mean of their age is between 90 and 100 months. Some: Michael D Shook and Ruhr! L. Shock. 7711 Book ofﬂddk. a. Find the probability that a person selected at random consumes less than 224 pounds per year, [2. If a s c of 40 individuals is selected, ﬁnd the: probability {hat thg@ .\Lhc:s;:mm\$will be less than 224 pounds per year. ' M '5 '. Q ‘3'“ , ,~ MS r, 1 ’ \ L (93“ ' ll } l "1‘ 5.1-, ‘4 7!, E, [- H .7; -k\ . l c ;; l l L! I 'Z J . 7‘4; 4 1.4} f)”: 1H \ x *3 3;?! n - '1 t w , l \ th‘ :3“?! a I .7 ' i; ' i ‘\ a“ i, z 4 i A? ) ...
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## This homework help was uploaded on 04/15/2008 for the course MATH 1680 taught by Professor Patton during the Spring '08 term at North Texas.

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CLT Problems - A C Neilsen reported that chiidten between...

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