Use the TI-84 calculator to find the z-scores that bound the middle 68% of the area under the standard normal curve. Enter the answers in ascending order and round to two decimal places. The z-scores for the given area are [ ] and [ ].
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The middle 68% of the area under the standard normal curve is bounded by the z-scores that correspond to the 16th percentile and the 84th percentile (since 100% - 68% = 32%, and 32% / 2 = 16%). Show more…
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