Question

Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation. Shaded area is 0.06945

Please show work!

Answer 1

z ≈ 1.48

Explanation:

A suitable calculator requires only the "work" of data entry. For a TI-83, you can find the result from ...

invNorm(.06945,0,1,RIGHT-tail) = 1.479899759

The z-value is about 1.48.

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Additional comment

My iOS TI-83/84 "work-alike" app reportedly gives more accurate results than an actual TI-83 calculator. YMMV