Posted by **John** on Monday, June 14, 2010 at 2:18pm.

find z such that 5.2% of the standard normal curve lies to the left of z

- Statistics -
**PsyDAG**, Wednesday, June 16, 2010 at 2:55am
Use that table again.

- Statistics -
**Deepeash Dev**, Wednesday, November 11, 2015 at 10:43am
You have to do a reverse lookup on a standard distribution table to find the answers.

Or, if you have excel, use the NORMSINV function.

1. P(X≤z) = 0.052

z = -1.626

in Excel, the cell for your result has the formula =NORMSINV(0.052). easy. Or you can find your favorite z-table and find out. If your z-value table only has the values for z≥0, just find the value of z for P(X≤z) = 0.948, and you'll have -z.

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