SOLUTION: Please help.
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the verbal ability test, the mean for people in general is 50 and the st
Algebra.Com
Question 195201: Please help.
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the verbal ability test, the mean for people in general is 50 and the standard deviation is 20. For the quantitative ability test, the mean for people in general is 0 and the standard deviation is 5. Which is the person’s stronger ability: verbal or quantitative? Explain your answer to a person who has never had a course in statistics.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the verbal ability test, the mean for people in general is 50 and the standard deviation is 20. For the quantitative ability test, the mean for people in general is 0 and the standard deviation is 5. Which is the person’s stronger ability: verbal or quantitative? Explain your answer to a person who has never had a course in statistics.81) =
-----------------------------------------
Standardize both scores by converting them to z-scores
z(81) = (81-50)/2 = 31/20 = 1.55
----------
z(6.4) = (6.4-0)/5 = 1.28
--------------------------------------
Conclusion: The verbal ability test is the higher.
--------------------------------------
Cheers,
Stan
RELATED QUESTIONS
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. (answered by stanbon)
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative... (answered by stanbon)
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative... (answered by jrfrunner)
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative... (answered by edjones)
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative... (answered by edjones)
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative... (answered by Theo)
A person scores a 81 on a test of verbal ability and a 6.4 on a tesat of quantitative... (answered by stanbon)
A person scores 81 on a test of verbal ability and 6.4 on a test of math ability. For the (answered by ewatrrr)
3) The following table shows the scores of subject 1 on six different scales of an... (answered by ewatrrr)