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The results of a certain medical test are normally distributed with a mean of 123 and a standard deviation of 18. Convert the given results
into z-scores, and then use the accompanying table of z-scores
and percentiles to find the percentage of people with readings between 117
and 129.
Click the icon to view the table of z-scores and percentiles.
The percentage of people with readings between 117 and 129 is
(Round to two decimal places as needed.)
%.
very good
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