SOLUTION: A large tank of fish from a hatchery is being delivered to a lake. The hatchery claims that the mean length of fish in the tank is 15 inches, and the standard deviation is 5 inches

Question 865868: A large tank of fish from a hatchery is being delivered to a lake. The hatchery claims that the mean length of fish in the tank is 15 inches, and the standard deviation is 5 inches. A random sample of 22 fish is taken from the tank. Let x be the mean sample length of these fish. What is the probability that x is within 0.5 inch of the claimed population mean?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

mean = 15 inches, SD = 5 inches for population

Sample 22, s = 5/sqrt(22) = 1.066

P(14.5 ≤ x ≤ 15.5) = normalcdf(14.5, 15.5, 15, 1.066) 

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