Question

Phone bills for residents of Shangri-La are normally distributed, with a mean of 98.75 gold coins and a standard deviation of 10.21 gold coins. Random samples of 48 phone bills are drawn from the population and the mean of each sample is determined. Find the standard error of the mean of the indicated sampling distribution

Answer #1

X : Phone bills for residents of Shangri-La .

X ~ N (98.75,10.21)

*here,we have,*

Random samples of 48 phone bills are drawn from the population ..so, sample size (n) = 48

**the standard
error of the mean of the indicated sampling distribution
is:-**

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