Use the standard normal table to find the z-score that corresponds to the given

Question

Use the standard normal table to find the z-score that corresponds to the given percentile. If the area is not in the table, use the entry closest to the area. If the area is halfway between two entries, use the z-score halfway between the corresponding z-scores. If convenient, use technology to find the z-score. Upper P 90 Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING... The z-score that corresponds to Upper P 90 is nothing . (Round to two decimal places as needed.)

Explanation / Answer

P 90 is essentially the 90th to percentile.

Therefore the Z score for 90th perc is Z = 1.28

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