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.

P48

P90

P4

P80

Use the standard normal table to find the z-score that corresponds to the cumulative area 0.0388 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.

Explanation / Answer

P48 = -0.05

P90 = 1.282

P4 = -1.751

P80 = 0.841

z-score that corresponds to the cumulative area 0.0388 = -1.828

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