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Author Question: There are 8,000 students at the University of Tennessee at Chattanooga. The average age of all the ... (Read 90 times)

Deast7027

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on: Jun 24, 2018
There are 8,000 students at the University of Tennessee at Chattanooga. The average age of all the students is 24 years with a standard deviation of 9 years. A random sample of 36 students is selected.
 a. Determine the standard error of the mean.
  b. What is the probability that the sample mean will be larger than 19.5?
  c. What is the probability that the sample mean will be between 25.5 and 27 years?

Question 2

Larger values of the standard deviation result in a normal curve that is _____.
 a. shifted to the right
  b. shifted to the left
  c. narrower and more peaked
  d. wider and flatter


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zacnyjessica

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Reply #1 on: Jun 24, 2018
Answer to Question 1

a. 1.5
b. 0.9986
c. 0.1359

Answer to Question 2

d


Deast7027

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Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

shailee

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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