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OpenStudy (goldrush18):
A population consists of 500 items. A sample of size 49 is selected, and the mean is 40 and the standard deviation 9. develop a 99 percent confidence interval for the population mean.
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ganeshie8 (ganeshie8):
start by finding the margin of error
ganeshie8 (ganeshie8):
knw how to find margin of error for 99% confidence interval ?
OpenStudy (goldrush18):
ok im gonna try and do that
OpenStudy (goldrush18):
after that then i use another formula right?
ganeshie8 (ganeshie8):
yes, rest is easy. finding margin of error is the only tricky part
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ganeshie8 (ganeshie8):
knw how to figure out whats the \(Z^*\) value for 99% Confidence Interval ?
ganeshie8 (ganeshie8):
|dw:1396204505710:dw|
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