The lengths of pregnancies in a small rural village are normally distributed with a mean of 263 days and a standard deviation of 14 days. A distribution of values is normal with a mean of 263 and a standard deviation of 14. What percentage of pregnancies last beyond 305 days? P(X> 305 days) % Enter your answer as a percent accurate to 1 decimal place (do not enter the "%" sign). Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. Question Help: Message instructor Submit Question

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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**Understanding Normal Distribution in Pregnancy Durations**

The lengths of pregnancies in a small rural village are normally distributed with a mean of 263 days and a standard deviation of 14 days. A distribution of values is normal with a mean of 263 and a standard deviation of 14.

**Question:**
What percentage of pregnancies last beyond 305 days?

\[ P(X > 305 \text{ days}) = \_\_\_\_ \% \]

**Instructions:**

- Enter your answer as a percent accurate to 1 decimal place (do not enter the "%" sign).
- Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

**Answer Submission:**

- Click the "Submit Question" button to record your answer.

**Need Help?**

- Click "Message instructor" for assistance with this question.

This exercise helps reinforce concepts in statistics, particularly how to apply z-scores and the properties of the normal distribution to real-world scenarios.
Transcribed Image Text:**Understanding Normal Distribution in Pregnancy Durations** The lengths of pregnancies in a small rural village are normally distributed with a mean of 263 days and a standard deviation of 14 days. A distribution of values is normal with a mean of 263 and a standard deviation of 14. **Question:** What percentage of pregnancies last beyond 305 days? \[ P(X > 305 \text{ days}) = \_\_\_\_ \% \] **Instructions:** - Enter your answer as a percent accurate to 1 decimal place (do not enter the "%" sign). - Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. **Answer Submission:** - Click the "Submit Question" button to record your answer. **Need Help?** - Click "Message instructor" for assistance with this question. This exercise helps reinforce concepts in statistics, particularly how to apply z-scores and the properties of the normal distribution to real-world scenarios.
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