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To solve this problem you have to find out what the value of +/- Z is that encloses 95% of the area under the normal distribution curve. For this you can use this formula: Please see the attached image.
Find the upper and lower limits of x, corresponding to +Z and -Z respective.
<span>I hope this helps, Regards.</span>
Find the upper and lower limits of x, corresponding to +Z and -Z respective.
<span>I hope this helps, Regards.</span>