Scores for a common standardized college aptitude test are normally distributed with a mean of 510 and a standard deviation of 96. Randomly selected men are given a Test Preparation Course before taking this test. Assume, for sake of argument, that the preparation course has no effect. If 1 of the men is randomly selected, find the probability that his score is at least 579.5. P(X> 579.5) = Enter your answer as a number accurate to 4 decimal places. If 11 of the men are randomly selected, find the probability that their mean score is at least 579.5. P(M > 579.5) = Enter your answer as a number accurate to 4 decimal places.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
Section: Chapter Questions
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**Problem Description:**

Scores for a common standardized college aptitude test are normally distributed with a mean of 510 and a standard deviation of 96. Randomly selected men are given a Test Preparation Course before taking this test. Assume, for sake of argument, that the preparation course has no effect.

**Task A:**
If 1 of the men is randomly selected, find the probability that his score is at least 579.5.

- Calculation:
  - \( P(X > 579.5) = \)
  - Enter your answer as a number accurate to 4 decimal places.

**Task B:**
If 11 of the men are randomly selected, find the probability that their mean score is at least 579.5.

- Calculation:
  - \( P(M > 579.5) = \)
  - Enter your answer as a number accurate to 4 decimal places.

**Instructions:**

- Use the properties of the normal distribution to solve the problems.
- For Task A, focus on individual probability.
- For Task B, consider the mean of a sample size of 11.
- Ensure all answers are provided to four decimal places for precision.
Transcribed Image Text:**Problem Description:** Scores for a common standardized college aptitude test are normally distributed with a mean of 510 and a standard deviation of 96. Randomly selected men are given a Test Preparation Course before taking this test. Assume, for sake of argument, that the preparation course has no effect. **Task A:** If 1 of the men is randomly selected, find the probability that his score is at least 579.5. - Calculation: - \( P(X > 579.5) = \) - Enter your answer as a number accurate to 4 decimal places. **Task B:** If 11 of the men are randomly selected, find the probability that their mean score is at least 579.5. - Calculation: - \( P(M > 579.5) = \) - Enter your answer as a number accurate to 4 decimal places. **Instructions:** - Use the properties of the normal distribution to solve the problems. - For Task A, focus on individual probability. - For Task B, consider the mean of a sample size of 11. - Ensure all answers are provided to four decimal places for precision.
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