Suppose we hve a population of scores with a mean of 200 and astandard deviation of 10. Assume that the distribution isnormal. Provide the following answers: a. What score would cut off the top 5 percent ofscores? b. What score would cut off the bottom 5 percent ofscores? c. What score would cut off the top 2.5 percent ofscores? d. What score would cut off the bottom 2.5 percent ofscores? Thanks so much! Suppose we hve a population of scores with a mean of 200 and astandard deviation of 10. Assume that the distribution isnormal. Provide the following answers: a. What score would cut off the top 5 percent ofscores? b. What score would cut off the bottom 5 percent ofscores? c. What score would cut off the top 2.5 percent ofscores? d. What score would cut off the bottom 2.5 percent ofscores? Thanks so much!
Explanation / Answer
mean of 200 standard deviation of 10. a. What score would cut off the top 5 percent ofscores?= +1.63 X 10 + 200 =216.3 b. What score would cut off the bottom 5 percent ofscores? =-1.63 X 10 + 200 =183.7 c. What score would cut off the top 2.5 percent ofscores? =+1.96 X 10 + 200 =219.6 d. What score would cut off the bottom 2.5 percent ofscores?= -1.96 X 10 + 200 =180.4 Thanks so much!