Find and interpret a 90% confidence interval for the mean depth of all subterranean rodent burrows. The 90% confidence interval for μ is from______ to ________(round answers to 3 decimal places.)
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Zoologists studied the characteristics of the burrow systems of a subterranean rodent. A sample of 51 burrows had their depths, in centimeters, recorded in the following table. using technology.
we have to find 90% confidence interval
in the given data
n = 51
sum of data = 764.1
therefore mean = sum of data/n
=764.1/51
=14.9824
variance = = = 6.31753
standard deviation = = 2.51347
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