| Question : Between what two values of Z will 88% of the middle data values fall between? Answer : Use the percentile to z-score calculator for 2-sided area and enter .88, you should get 1.5. A good way to check this is looking at the interactive graph of the standard normal curve and hovering the mouse over a z-score of 1.5 or -1.5 for the 2-sided graph. You should see the percent of shaded area be 88%. | How helpful was this answer?
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