Suppose that the walking step lengths of adult males are normally distributed with a mean of 2.3 feet and a standard deviation of 0.4 feet. A sample of 52 men's step lengths is taken. Step 2 of 2: Find the probability that the mean of the sample taken is less than 1.9 feet. Round your answer to 4 decimal places, if necessary. Answer E Tables в Кеурad Keyboard Shortcuts

MATLAB: An Introduction with Applications
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**Statistical Problem: Probability of Sample Means**

Suppose that the walking step lengths of adult males are normally distributed with a mean of 2.3 feet and a standard deviation of 0.4 feet. A sample of 52 men's step lengths is taken.

**Step 2 of 2:** Find the probability that the mean of the sample taken is less than 1.9 feet. Round your answer to 4 decimal places, if necessary.

**Answer Section:**

*The answer section is left blank for calculation.*

**Note:** This problem involves using the properties of the normal distribution to find probabilities related to sample means. Use the z-score formula for the sample mean to solve this problem:

\[ Z = \frac{\bar{X} - \mu}{\frac{\sigma}{\sqrt{n}}} \]

Where:
- \(\bar{X}\) is the sample mean
- \(\mu\) is the population mean (2.3 feet)
- \(\sigma\) is the population standard deviation (0.4 feet)
- \(n\) is the sample size (52) 

You may refer to statistical tables or use statistical software to find the probability from the z-score.

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Transcribed Image Text:Sure, here's a transcription suitable for an educational website: --- **Statistical Problem: Probability of Sample Means** Suppose that the walking step lengths of adult males are normally distributed with a mean of 2.3 feet and a standard deviation of 0.4 feet. A sample of 52 men's step lengths is taken. **Step 2 of 2:** Find the probability that the mean of the sample taken is less than 1.9 feet. Round your answer to 4 decimal places, if necessary. **Answer Section:** *The answer section is left blank for calculation.* **Note:** This problem involves using the properties of the normal distribution to find probabilities related to sample means. Use the z-score formula for the sample mean to solve this problem: \[ Z = \frac{\bar{X} - \mu}{\frac{\sigma}{\sqrt{n}}} \] Where: - \(\bar{X}\) is the sample mean - \(\mu\) is the population mean (2.3 feet) - \(\sigma\) is the population standard deviation (0.4 feet) - \(n\) is the sample size (52) You may refer to statistical tables or use statistical software to find the probability from the z-score. ---
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