alexxreyess03
02.12.2019 •
Mathematics
Acompany manager wants to estimate the average length of phone calls in a call center for a tech support company. in a sample of 2500 calls, the mean duration is 163 seconds and the population standard deviation is 114 seconds. describe the distribution of this sample involving the sampling distribution of sampling means.
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Ответ:
f(x)=4
step-by-step explanation: