The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n=65​, find the...




The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual.


For a sample of
n=65​,

find the probability of a sample mean being greater than
213

if
μ=212

and
σ=5.7.







Would the given sample mean be considered​ unusual?


The sample mean



▼




be considered unusual because it



▼


does not lie

lies




within the range of a usual​ event, namely within



▼


1 standard deviation

2 standard deviations

3 standard deviations




of the mean of the sample means.




Jun 08, 2022
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