4) (4 points) Recent data from the US Census indicates that the mean age of college students is u = 25 years, with a standard deviation o = 9.5 years. A random sample of 125 students is drawn. What is the probability that the sample mean age of the students is greater than 26 years ?

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.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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4) (4 points) Recent data from the US Census indicates that the mean age of college
students is u = 25 years, with a standard deviation o = 9.5 years. A random sample of
125 students is drawn. What is the probability that the sample mean age of the students is
greater than 26 years ?
Transcribed Image Text:4) (4 points) Recent data from the US Census indicates that the mean age of college students is u = 25 years, with a standard deviation o = 9.5 years. A random sample of 125 students is drawn. What is the probability that the sample mean age of the students is greater than 26 years ?
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ISBN:
9780321964038
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GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,