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Consider as the mean of a random sample of 60 elements drawn from a population with mean of 115 with a standard deviation of 39
Consider as the mean of a random sample of 60 elements drawn from a population with mean of 115 with a standard deviation of 39 Please calculate in excel showing steps | ||||||||||
Calculate the following elements: | ||||||||||
a) | Mean and Standard Deviation of | |||||||||
b) | Find the probability that assumes a value between 112 and 117 | |||||||||
c) | Find the probability that assumes a value greater than 116 | |||||||||
Hint: Remember that for sample over 30 according to the Central Limit Theorem the sample is approximately normally distributed (Z) | ||||||||||
Hint: To calculate the std. Deviation we are considering infinite population |
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