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
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
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![Sure, here's a transcription suitable for an educational website:
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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.
---](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1c9a3da8-b443-4c7b-9ddb-d4ba4f71dd14%2F5f168328-40b7-4707-b581-e04886065a5e%2Fd9q5nws_processed.png&w=3840&q=75)
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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