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. Wen received the final grade for her 3rd year Econometrics course at the end of last semester. Wen did exceptionally well and received a final grade of 98.5 out of 100. The final grades were normally dis- tributed with a mean of 65 and a standard deviation of 20. Let X be the final grade of a randomly selected student, and Z be the standard normal distribution.

. Wen received the final grade for her 3rd year Econometrics course at the end of last semester. Wen did exceptionally well and received a final grade of 98.5 out of 100. The final grades were normally dis- tributed with a mean of 65 and a standard deviation of 20. Let X be the final grade of a randomly selected student, and Z be the standard normal distribution.

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter2: Exponential, Logarithmic, And Trigonometric Functions
Section2.CR: Chapter 2 Review
Problem 111CR: Respiratory Rate Researchers have found that the 95 th percentile the value at which 95% of the data...
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4. Wen received the final grade for her 3rd year Econometrics course at the end of last semester. Wen did exceptionally well and received a final grade of 98.5 out of 100. The final grades were normally dis- tributed with a mean of 65 and a standard deviation of 20. Let X be the final grade of a randomly selected student, and Z be the standard normal distribution. (d) Calculate the value z such that Pr(X > x) = 0.05. (e) The top 5% of students were offered the chance to undertake a Winter internship with their local Bureau of Statistics. Was Wen offered the opportunity to undertake one of these internships?
Transcribed Image Text:4. Wen received the final grade for her 3rd year Econometrics course at the end of last semester. Wen did exceptionally well and received a final grade of 98.5 out of 100. The final grades were normally dis- tributed with a mean of 65 and a standard deviation of 20. Let X be the final grade of a randomly selected student, and Z be the standard normal distribution. (d) Calculate the value z such that Pr(X > x) = 0.05. (e) The top 5% of students were offered the chance to undertake a Winter internship with their local Bureau of Statistics. Was Wen offered the opportunity to undertake one of these internships?
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