Question
Scores on the quantitative portion of the GRE are approximately normally distributed with mean u=150.8 and a standard deviation o=8.8. 1. A random sample of
Scores on the quantitative portion of the GRE are approximately normally distributed with mean u=150.8 and a standard deviation o=8.8.
1. A random sample of 5 students was selected to take the GRE. Their scores are: 160, 175, 163, 149, 153.
What is the z-score corresponding to the sample mean of these students' scores?
2.What is the probability that five randomly selected students will have a mean score that is greated than the mean achieved by the students in the previous problem?
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An Introduction to the Mathematics of financial Derivatives
Authors: Salih N. Neftci
2nd Edition
978-0125153928, 9780080478647, 125153929, 978-0123846822
