Duplicate Question
The question on this page has been marked as a duplicate question.
Original Question
Reading readiness of preschoolers from an impoverished neighborhood (n = 20) was measured using a standardized test. Nationally...Asked by Norvin
Reading readiness of preschoolers from an impoverished neighborhood (=20) was measured using a standardized test. Nationally, the mean on thios test for preschoolers is 30.9, with SD = 2.08.
a. children below the 30th percentile (in the bottom 30%) are in need of special assistance prior to attending school. What raw score marks the cut-off score for these children?
a. children below the 30th percentile (in the bottom 30%) are in need of special assistance prior to attending school. What raw score marks the cut-off score for these children?
Answers
Answered by
MathMate
You can look up a normal distribution table to find that the z-score for the lower 30 percentile is z=-0.475.
Use
Score = μ+σz to get the raw score. Remember that the value of z is signed.
Use
Score = μ+σz to get the raw score. Remember that the value of z is signed.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.