If the results on a nationally administered introductorystatistics tezt is normally distributed with a mean of 90points and a standard deviation of 10 points, determine thefollowing:
a) Find the z-score for a single test that had 75 points. Then find the z-score for one with 112 points
b) If x represents a possible point-score on the test, find P(x > 85).
c) Find P(70 < x < 115) and give aninterpretation of this value.
d) What is the minimum number of points one must score onthis test to be in the top 10% of all the scores?
If the results on a nationally administered introductory statistics tezt is normally distributed with a mean of 90 point
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If the results on a nationally administered introductory statistics tezt is normally distributed with a mean of 90 point
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