Standard deviation-square root of n

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Reference no: EM132263602

The heights of THS male students is normally distributed:

Assume standard deviation is = 3.1

How large a sample is necessary to be açcurate w/in +/- 0.65 inches with a 95% confidence interval?

Use formula:

Mean=z*× standard deviation/square root of n

What is the z* factor and how do you calculate it

Reference no: EM132263602

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