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Assume that population mean is to be estimated from the sample described. Use the sample results to approximate the margin of error and95% confidence interval.

Samplesize, n=64; samplemean, x=68.0 cm; sample standarddeviation, s=5.0 cm

The margin of error is

nothing

cm.

(Round to one decimal place asneeded.)

Find the95% confidence interval.

nothing

cm<<

nothing

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