Suppose you have used a randomized block design to help you compare the effectiveness of three different treatments, A, B, and C. You obtained the data given in the table to the right and plan to conduct a Friedman F,-test. Complete parts a through c below. Treatment Block A В 1 14 13 14 2 11 13 10 10 19 9. 13 18 14 14 15 a. Specify the null and alternative hypotheses you will test. Ho: All of the probability distributions for the 3 treatments is/are identical Ha: At least two of the probability distributions for the 3 treatments is/are different b. Specify the rejection region for the test. Use a = 0.05. F, 5.991 (Round to three decimal places as needed.) > c. Conduct the test and interpret the results. Find the test statistic F,. F, = (Round to two decimal places as needed.) O + N O O 5 N 3 4 5
Suppose you have used a randomized block design to help you compare the effectiveness of three different treatments, A, B, and C. You obtained the data given in the table to the right and plan to conduct a Friedman F,-test. Complete parts a through c below. Treatment Block A В 1 14 13 14 2 11 13 10 10 19 9. 13 18 14 14 15 a. Specify the null and alternative hypotheses you will test. Ho: All of the probability distributions for the 3 treatments is/are identical Ha: At least two of the probability distributions for the 3 treatments is/are different b. Specify the rejection region for the test. Use a = 0.05. F, 5.991 (Round to three decimal places as needed.) > c. Conduct the test and interpret the results. Find the test statistic F,. F, = (Round to two decimal places as needed.) O + N O O 5 N 3 4 5
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Topic Video
Question
![### Comparing the Effectiveness of Three Treatments Using a Randomized Block Design
#### Background Information
In this exercise, we aim to compare the effectiveness of three different treatments, labeled A, B, and C, using a randomized block design. A Friedman \( F_r \)-test is used to analyze the data collected. The data are organized into five blocks, as shown below:
| Block | Treatment A | Treatment B | Treatment C |
|-------|-------------|-------------|-------------|
| 1 | 14 | 13 | 14 |
| 2 | 11 | 13 | 12 |
| 3 | 10 | 10 | 19 |
| 4 | 9 | 13 | 18 |
| 5 | 14 | 14 | 15 |
#### Steps to Conduct the Friedman \( F_r \)-test
**a. Specify the null and alternative hypotheses:**
- **Null Hypothesis (\(H_0\))**: All of the probability distributions for the 3 treatments are identical.
- **Alternative Hypothesis (\(H_a\))**: At least two of the probability distributions for the 3 treatments are different.
**b. Specify the rejection region for the test:**
- Use a significance level (\(\alpha\)) of 0.05.
- The critical value from the Friedman test distribution is 5.991.
- The rejection region for the test is \( F_r > 5.991 \) (rounded to three decimal places as needed).
**c. Conduct the test and interpret the results:**
- Calculate the test statistic \( F_r \) using the given data.
- Formula:
\[ F_r = \text{(Round to two decimal places as needed.)} \]
Complete the calculation based on the specific steps required to compute the Friedman test statistic.
Ensure to compare the computed \( F_r \) value with the critical value 5.991 to draw conclusions. If \( F_r > 5.991 \), reject the null hypothesis in favor of the alternative hypothesis.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F502330eb-9fa1-41eb-8716-374edceb5782%2Fe978fd4e-4452-4df6-abb2-20a6f9d2a3b5%2Fe6l82p_processed.png&w=3840&q=75)
Transcribed Image Text:### Comparing the Effectiveness of Three Treatments Using a Randomized Block Design
#### Background Information
In this exercise, we aim to compare the effectiveness of three different treatments, labeled A, B, and C, using a randomized block design. A Friedman \( F_r \)-test is used to analyze the data collected. The data are organized into five blocks, as shown below:
| Block | Treatment A | Treatment B | Treatment C |
|-------|-------------|-------------|-------------|
| 1 | 14 | 13 | 14 |
| 2 | 11 | 13 | 12 |
| 3 | 10 | 10 | 19 |
| 4 | 9 | 13 | 18 |
| 5 | 14 | 14 | 15 |
#### Steps to Conduct the Friedman \( F_r \)-test
**a. Specify the null and alternative hypotheses:**
- **Null Hypothesis (\(H_0\))**: All of the probability distributions for the 3 treatments are identical.
- **Alternative Hypothesis (\(H_a\))**: At least two of the probability distributions for the 3 treatments are different.
**b. Specify the rejection region for the test:**
- Use a significance level (\(\alpha\)) of 0.05.
- The critical value from the Friedman test distribution is 5.991.
- The rejection region for the test is \( F_r > 5.991 \) (rounded to three decimal places as needed).
**c. Conduct the test and interpret the results:**
- Calculate the test statistic \( F_r \) using the given data.
- Formula:
\[ F_r = \text{(Round to two decimal places as needed.)} \]
Complete the calculation based on the specific steps required to compute the Friedman test statistic.
Ensure to compare the computed \( F_r \) value with the critical value 5.991 to draw conclusions. If \( F_r > 5.991 \), reject the null hypothesis in favor of the alternative hypothesis.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images

Knowledge Booster
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.Recommended textbooks for you

MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc

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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning

MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc

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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning

Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON

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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman