Assume critical reading scores for a standardized test are distributed as ​N(570​, 50​). Complete parts​ (a) through​ (d) below.       a. Find the test score at the 75th percentile.   The 75th percentile is nothing. ​(Round to the nearest integer as​ needed.) b. Find the test score at the 25th percentile.   The 25th percentile is nothing. ​(Round to the nearest integer as​ needed.) c. Find the interquartile range for test scores.   The interquartile range is nothing. ​(Round to the nearest integer as​ needed.) d. Is the interquartile range larger or smaller than the standard​ deviation?

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