Mathematics, 20.09.2019 03:00 jaeana
Astate administered standardized reading exam is given to eighth grade students. the scores on this exam for all students statewide have a normal distribution with a mean of 507 and a standard deviation of 39. a local junior high principal has decided to give an award to any student who scores in the top 10% of statewide scores. how high should a student score be to win this award? give your answer to the nearest integer. for on how to input a numeric answer, see the instructions for entering numeric response.
Answers: 2
and 
and we are interested in the minimum score required for a student to be in the top 10% of all scores, It is necessary to calculate the 90th percentile for the cumulative probability distribution of the score variable in the reading test.
is a standard normal variable and therefore, 
is the score corresponding to the standardized value z.
, then, using the inverse standard normal distribution you have to 
y hence 
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Astate administered standardized reading exam is given to eighth grade students. the scores on this...
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