Joel Berry, the point guard of the 2017 NCAA Men's Basketball Champion North Carolina Tar Heels, recently took a standardized test to try to get credit for first year Spanish by examination. His standardized score (z-value) was 1.8. The mean score for the exam was a 105 with a standard deviation of 10. The language department at Chapel Hill requires a raw score of 125 to get credit by exam for first-year Spanish. Recall z =(x-mean)/std dev a. Compute Joel's raw score (the numerical value - also known as x) b. Will Joel get credit for first year Spanish based on his exam? Why? c. What percentage of students at Carolina who take the standardized test actually get credit for first-year Spanish by examination? (Hint: find P(x > 125) using the Norm.Dist function

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Joel Berry, the point guard of the 2017 NCAA Men's Basketball Champion North
Carolina Tar Heels, recently took a standardized test to try to get credit for first
year Spanish by examination. His standardized score (z-value) was 1.8. The mean
score for the exam was a 105 with a standard deviation of 10. The language
department at Chapel Hill requires a raw score of 125 to get credit by exam for
first-year Spanish. Recall z =(x-mean)/std dev
a. Compute Joel's raw score (the numerical value - also known as x)
b. Will Joel get credit for first year Spanish based on his exam? Why?
c. What percentage of students at Carolina who take the standardized test
actually get credit for first-year Spanish by examination?
(Hint: find P(x > 125) using the Norm.Dist function
Transcribed Image Text:Joel Berry, the point guard of the 2017 NCAA Men's Basketball Champion North Carolina Tar Heels, recently took a standardized test to try to get credit for first year Spanish by examination. His standardized score (z-value) was 1.8. The mean score for the exam was a 105 with a standard deviation of 10. The language department at Chapel Hill requires a raw score of 125 to get credit by exam for first-year Spanish. Recall z =(x-mean)/std dev a. Compute Joel's raw score (the numerical value - also known as x) b. Will Joel get credit for first year Spanish based on his exam? Why? c. What percentage of students at Carolina who take the standardized test actually get credit for first-year Spanish by examination? (Hint: find P(x > 125) using the Norm.Dist function
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