Is it reasonable to consider that the 100 scores obtained from that region from population that follows came a a distribution similar to that of the national norm? How likely it is to find a mean reading score of 72 or less for a sample of size 100 coming from a population with mean score 75 and standard deviation 16?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A random sample of 100 high school seniors from a certain region
had a
mean reading score of 72. National norms of reading
proficiency for high school seniors show a distribution of scores with
a mean of 75 and a standard deviation of 16.
Is it reasonable to consider that the 100 scores obtained from
that region
from
population that follows
came
a
a
distribution similar to that of the national norm?
How likely it is to find a mean reading score of 72 or less for a
sample of size 100 coming from a population with mean score
75 and standard deviation 16?
Transcribed Image Text:A random sample of 100 high school seniors from a certain region had a mean reading score of 72. National norms of reading proficiency for high school seniors show a distribution of scores with a mean of 75 and a standard deviation of 16. Is it reasonable to consider that the 100 scores obtained from that region from population that follows came a a distribution similar to that of the national norm? How likely it is to find a mean reading score of 72 or less for a sample of size 100 coming from a population with mean score 75 and standard deviation 16?
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