Assume critical reading scores for a standardized test are distributed as N(550, 50). a. Find the test score at the 75th percentile. The 75th percentile is. (Round to the nearest integer as needed.) b. Find the test score at the 25th percentile. The 25th percentile is

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Assume critical reading scores for a standardized test are distributed as ​N(550,50). Complete parts​ (a) through​ (d) below. 

Assume critical reading scores for a standardized test are distributed as N(550, 50). Complete parts (a) through (d) below.
.....
a. Find the test score at the 75th percentile.
The 75th percentile is
(Round to the nearest integer as needed.)
b. Find the test score at the 25th percentile.
The 25th percentile is
(Round to the nearest integer as needed.)
c. Find the interquartile range for test scores.
The interquartile range is
(Round to the nearest integer as needed.)
d. Is the interquartile range larger or smaller than the standard deviation?
The interquartile range is
than the standard deviation.
Transcribed Image Text:Assume critical reading scores for a standardized test are distributed as N(550, 50). Complete parts (a) through (d) below. ..... a. Find the test score at the 75th percentile. The 75th percentile is (Round to the nearest integer as needed.) b. Find the test score at the 25th percentile. The 25th percentile is (Round to the nearest integer as needed.) c. Find the interquartile range for test scores. The interquartile range is (Round to the nearest integer as needed.) d. Is the interquartile range larger or smaller than the standard deviation? The interquartile range is than the standard deviation.
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