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Q1) Researchers at pharmaceutical company have found that effective time duration of safe dosage of pain relief drug is normally distributed with mean two hours and standard deviation 0.3 hours. For what proportion of patients will drug be effective for between 2 and 2.25 hours?

In order to make little money for holidays, Farmer Fred is raising turkeys. Male of the species he has selected has mean weight of 17 pounds at maturity and standard deviation of 1.8 pounds. Weights are known to be normally distributed.

i) Determine the probability of randomly selected male turkey weights of at least 17.5 pounds at maturity?

ii) Determine the probability of random sample of 49 male turkeys having average of at least 17.5 pounds at maturity?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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