SOLUTION: Roger has read a report that the weights of adult mail Siberian tigers have a distribution which is approximately normal with mean μ = 390 lb and σ = 65 lb. a) Find th

Algebra ->  Probability-and-statistics -> SOLUTION: Roger has read a report that the weights of adult mail Siberian tigers have a distribution which is approximately normal with mean μ = 390 lb and σ = 65 lb. a) Find th      Log On


   

Question 129837: Roger has read a report that the weights of adult mail Siberian tigers have a distribution which is approximately normal with mean μ = 390 lb and σ = 65 lb.
a) Find the probability that an individual male Siberian tiger will weigh more than 450 lb.
b Find the probability that a random sample of 4 male Siberian tigers will have a sample mean weight more than 450 lb.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Roger has read a report that the weights of adult mail Siberian tigers have a distribution which is approximately normal with mean μ = 390 lb and σ = 65 lb.
a) Find the probability that an individual male Siberian tiger will weigh more than 450 lb.
Find the t-score for 450:
t(450) = (450-390)/65 = 0.9231...
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P(0.9231 < t < 10 for df=large) = 0.1791
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Cheers,
Stan H.