3. 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. What is the probability that the sample mean will be larger than 19.5?

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**Problem Statement:**

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. What is the probability that the sample mean will be larger than 19.5?

**Answer Options:**

- 0
- 0.9986
- 0.3275
- 0.7335

**Explanation:**

This problem is a statistical question involving the concept of sampling distributions. To solve it, you need to calculate the probability that the mean of a sample will be greater than a certain value, given the population mean and standard deviation. The solution typically involves using the normal distribution and z-scores, because the sample size is large enough (n = 36) to apply the Central Limit Theorem.
Transcribed Image Text:**Problem Statement:** 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. What is the probability that the sample mean will be larger than 19.5? **Answer Options:** - 0 - 0.9986 - 0.3275 - 0.7335 **Explanation:** This problem is a statistical question involving the concept of sampling distributions. To solve it, you need to calculate the probability that the mean of a sample will be greater than a certain value, given the population mean and standard deviation. The solution typically involves using the normal distribution and z-scores, because the sample size is large enough (n = 36) to apply the Central Limit Theorem.
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