Mathematics, 06.03.2020 16:24, cobalt3931

Current research indicates that the distribution of the life expectancies of a certain protozoan is normal with a mean of 43 days and a standard deviation of 10.5 days. Find the probability that a simple random sample of 64 protozoa will have a mean life expectancy of 46 or more days.

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Current research indicates that the distribution of the life expectancies of a certain protozoan is...