The heights of fully grown trees of a specific species are normally distributed, with a mean of 50.5 feet and a standard deviation of 7.25 feet. Random samples of size 17 are drawn from the population. Use the central limit theorem to find the mean and standard error of the sampling distribution. Then sketch a graph of the sampling distribution. The mean of the sampling distribution is p; = The standard error of the sampling distribution is o; = (Round to two decimal places as needed.) Choose the correct graph of the sampling distribution below. O A. O B. OC. 47.0 50.5 54.0 36.0 50.5 65.0

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
**Educational Exercise: Analysis of Sampling Distribution Using the Central Limit Theorem**

The exercise focuses on the heights of fully grown trees of a specific species, which are normally distributed. Given data includes:

- Mean (\(\mu\)) = 50.5 feet
- Standard deviation (\(\sigma\)) = 7.25 feet
- Sample size = 17

**Task Objective:**

1. **Calculate the Mean of the Sampling Distribution (\(\mu_{\overline{x}}\)):**

   The mean of the sampling distribution is the same as the population mean. Therefore, \(\mu_{\overline{x}} = 50.5\) feet.

2. **Calculate the Standard Error of the Sampling Distribution (\(\sigma_{\overline{x}}\)):**

   The standard error (\(\sigma_{\overline{x}}\)) is calculated using the formula:

   \[
   \sigma_{\overline{x}} = \frac{\sigma}{\sqrt{n}}
   \]

   \[
   \sigma_{\overline{x}} = \frac{7.25}{\sqrt{17}}
   \]

   Calculate this value and round it to two decimal places.

3. **Choose the Correct Graph of the Sampling Distribution:**

   Three options are provided:

   - **Option A:** A graph with a standard normal distribution ranging from -2 to 2.
   - **Option B:** A graph centered at 50.5, with the range approximately from 47 to 54.
   - **Option C:** A graph centered at 50.5, with a wider range from 36 to 65.

   To determine the correct graph, compare the calculated mean and standard error with the visual representation of each graph.

Upon completing the calculations, select the graph that accurately represents the sampling distribution of the tree heights for samples of size 17.

**Answer Key:**

- \(\mu_{\overline{x}}\) = 50.5
- \(\sigma_{\overline{x}}\) = (calculated value rounded to two decimals)
- Correct graph: B (centered at 50.5, appropriate range)

*Choose the graph option that matches your calculations to complete this exercise on sampling distributions.*
Transcribed Image Text:**Educational Exercise: Analysis of Sampling Distribution Using the Central Limit Theorem** The exercise focuses on the heights of fully grown trees of a specific species, which are normally distributed. Given data includes: - Mean (\(\mu\)) = 50.5 feet - Standard deviation (\(\sigma\)) = 7.25 feet - Sample size = 17 **Task Objective:** 1. **Calculate the Mean of the Sampling Distribution (\(\mu_{\overline{x}}\)):** The mean of the sampling distribution is the same as the population mean. Therefore, \(\mu_{\overline{x}} = 50.5\) feet. 2. **Calculate the Standard Error of the Sampling Distribution (\(\sigma_{\overline{x}}\)):** The standard error (\(\sigma_{\overline{x}}\)) is calculated using the formula: \[ \sigma_{\overline{x}} = \frac{\sigma}{\sqrt{n}} \] \[ \sigma_{\overline{x}} = \frac{7.25}{\sqrt{17}} \] Calculate this value and round it to two decimal places. 3. **Choose the Correct Graph of the Sampling Distribution:** Three options are provided: - **Option A:** A graph with a standard normal distribution ranging from -2 to 2. - **Option B:** A graph centered at 50.5, with the range approximately from 47 to 54. - **Option C:** A graph centered at 50.5, with a wider range from 36 to 65. To determine the correct graph, compare the calculated mean and standard error with the visual representation of each graph. Upon completing the calculations, select the graph that accurately represents the sampling distribution of the tree heights for samples of size 17. **Answer Key:** - \(\mu_{\overline{x}}\) = 50.5 - \(\sigma_{\overline{x}}\) = (calculated value rounded to two decimals) - Correct graph: B (centered at 50.5, appropriate range) *Choose the graph option that matches your calculations to complete this exercise on sampling distributions.*
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 4 images

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman