Mathematics, 20.03.2020 03:02 uhhgray
Given that the ages (in years) of the residents in a city are normally distributed with a population mean of 37 and population standard deviation 13.
You randomly select 25 people. Follow the following steps to find the probability that their mean age is between 30 and 44.
(1)What is the distribution of sample mean? And why?
(2) What the mean and standard deviation for this sample mean?
(3) Find z score
(4) Find probability
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Given that the ages (in years) of the residents in a city are normally distributed with a population...
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