Find the indicated z-score shown in the graph to the right. Click to view page 1

Question

Find the indicated z-score shown in the graph to the right. Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING... z Area equals Area= 0.3015 0.3015 z equals question mark z=? 0 A normal curve is over a horizontal z-axis and is centered on 0. A vertical line segment extends from the curve to the horizontal axis at a point labeled z = ?. The area under the curve and to the left of the vertical line segment is shaded and labeled Area = 0.3015. The z-score is nothing . (Round to two decimal places as needed.)

Explanation / Answer

Solution :

Using standard normal table,

P(Z > z) = 0.3015

1 - P(Z < z) = 0.3015

P(Z < z) = 1 - 0.3015 = 0.6985

P(Z < z) = 0.6985

See the probability 0.6985 in the standard normal table the correspoding z value is 0.52 .

P(Z < 0.52) = 0.6985

The z-score is 0.52 .

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