Họ: H = H2 and the alternative hypothesis is as specified. The provided data are from a simple random paired sample from the two nsideration. Use the paired t-test to perform the required hypothesis test at the 10% significance level. Obse Pair Popula 24 2 9 3 20 13 8 view the t-table. 4. 5 6 7 14 10 22 Use population 1- population 2 as the difference. hal places as needed.)

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
Topic Video
Question
100%
## Paired t-Test Hypothesis Testing

The null hypothesis is defined as \(H_0: \mu_1 = \mu_2\) and the alternative hypothesis as \(H_a: \mu_1 > \mu_2\). The provided data come from a simple random paired sample from two populations under consideration. The paired t-test is used to perform the required hypothesis test at the 10% significance level.

### Hypotheses
- **Null Hypothesis (\(H_0\)):** \(\mu_1 = \mu_2\)
- **Alternative Hypothesis (\(H_a\)):** \(\mu_1 > \mu_2\)

### Data
The data sets from Population 1 and Population 2 are paired as follows:

| Pair | Population 1 | Population 2 |
|------|--------------|--------------|
| 1    | 24           | 20           |
| 2    | 9            | 10           |
| 3    | 20           | 19           |
| 4    | 13           | 8            |
| 5    | 8            | 5            |
| 6    | 14           | 14           |
| 7    | 10           | 15           |
| 8    | 22           | 28           |

### Procedure
To conduct the paired t-test, follow these steps:

1. Calculate the differences between each pair (Population 1 - Population 2).
2. Find the mean (\(\bar{d}\)) and the standard deviation (\(s_d\)) of these differences.
3. Determine the test statistic \(t\) using the formula:
   \[
   t = \frac{\bar{d}}{s_d / \sqrt{n}}
   \]
   where \(n\) is the number of pairs.

4. Compare the calculated \(t\) value to the critical value from the t-distribution table at the 10% significance level.

### Objective
Find the test statistic \(t\). Use \( \text{Population 1} - \text{Population 2} \) as the difference.

\[ t = \_\_\_ \]
(Round to three decimal places as needed.)
Transcribed Image Text:## Paired t-Test Hypothesis Testing The null hypothesis is defined as \(H_0: \mu_1 = \mu_2\) and the alternative hypothesis as \(H_a: \mu_1 > \mu_2\). The provided data come from a simple random paired sample from two populations under consideration. The paired t-test is used to perform the required hypothesis test at the 10% significance level. ### Hypotheses - **Null Hypothesis (\(H_0\)):** \(\mu_1 = \mu_2\) - **Alternative Hypothesis (\(H_a\)):** \(\mu_1 > \mu_2\) ### Data The data sets from Population 1 and Population 2 are paired as follows: | Pair | Population 1 | Population 2 | |------|--------------|--------------| | 1 | 24 | 20 | | 2 | 9 | 10 | | 3 | 20 | 19 | | 4 | 13 | 8 | | 5 | 8 | 5 | | 6 | 14 | 14 | | 7 | 10 | 15 | | 8 | 22 | 28 | ### Procedure To conduct the paired t-test, follow these steps: 1. Calculate the differences between each pair (Population 1 - Population 2). 2. Find the mean (\(\bar{d}\)) and the standard deviation (\(s_d\)) of these differences. 3. Determine the test statistic \(t\) using the formula: \[ t = \frac{\bar{d}}{s_d / \sqrt{n}} \] where \(n\) is the number of pairs. 4. Compare the calculated \(t\) value to the critical value from the t-distribution table at the 10% significance level. ### Objective Find the test statistic \(t\). Use \( \text{Population 1} - \text{Population 2} \) as the difference. \[ t = \_\_\_ \] (Round to three decimal places as needed.)
### t-Table

This t-table displays critical values of t at various significance levels for different degrees of freedom (df). The table is essential for conducting t-tests in statistics to determine the significance of sample data. The significance levels provided are 0.10, 0.05, 0.025, 0.01, and 0.005. Below is a detailed breakdown of the table:

\[
\begin{array}{|c|c|c|c|c|c|c|}
\hline
\text{df} & t_{0.10} & t_{0.05} & t_{0.025} & t_{0.01} & t_{0.005} & \text{df}  \\
\hline
1  & 3.078 & 6.314  & 12.706  & 31.821  & 63.657  & 1  \\
2  & 1.886 & 2.920  & 4.303   & 6.965   & 9.925   & 2  \\
3  & 1.638 & 2.353  & 3.182   & 4.541   & 5.841   & 3  \\
4  & 1.533 & 2.132  & 2.776   & 3.747   & 4.604   & 4  \\
5  & 1.476 & 2.015  & 2.571   & 3.365   & 4.032   & 5  \\
6  & 1.440 & 1.943  & 2.447   & 3.143   & 3.707   & 6  \\
7  & 1.415 & 1.895  & 2.365   & 2.998   & 3.499   & 7  \\
8  & 1.397 & 1.860  & 2.306   & 2.896   & 3.355   & 8  \\
9  & 1.383 & 1.833  & 2.262   & 2.821   & 3.250   & 9  \\
10 & 1.
Transcribed Image Text:### t-Table This t-table displays critical values of t at various significance levels for different degrees of freedom (df). The table is essential for conducting t-tests in statistics to determine the significance of sample data. The significance levels provided are 0.10, 0.05, 0.025, 0.01, and 0.005. Below is a detailed breakdown of the table: \[ \begin{array}{|c|c|c|c|c|c|c|} \hline \text{df} & t_{0.10} & t_{0.05} & t_{0.025} & t_{0.01} & t_{0.005} & \text{df} \\ \hline 1 & 3.078 & 6.314 & 12.706 & 31.821 & 63.657 & 1 \\ 2 & 1.886 & 2.920 & 4.303 & 6.965 & 9.925 & 2 \\ 3 & 1.638 & 2.353 & 3.182 & 4.541 & 5.841 & 3 \\ 4 & 1.533 & 2.132 & 2.776 & 3.747 & 4.604 & 4 \\ 5 & 1.476 & 2.015 & 2.571 & 3.365 & 4.032 & 5 \\ 6 & 1.440 & 1.943 & 2.447 & 3.143 & 3.707 & 6 \\ 7 & 1.415 & 1.895 & 2.365 & 2.998 & 3.499 & 7 \\ 8 & 1.397 & 1.860 & 2.306 & 2.896 & 3.355 & 8 \\ 9 & 1.383 & 1.833 & 2.262 & 2.821 & 3.250 & 9 \\ 10 & 1.
Expert Solution
steps

Step by step

Solved in 4 steps with 9 images

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
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