MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
Bartleby Related Questions Icon

Related questions

Q: Thank you.
A:
Q: Let the random variables x and y have joint pdf as follow 0<x<1,0 <y<1 f(x,y) = (11x² + 4y²), Find…
A: The covariance of two random variables X and Y is given by: Cov(X,Y)=E(XY)-E(X)E(Y) To find the…
Q: Question 3
A:
Q: Need a little help
A:
Q: Need help urgently please!!
A:
Q: Thank you.
A:
Q: help ?
A: A perpendicular bisector is a line which divides another line into two equal parts. As it is…
Q: Help!
A: Given: To Find: Equation for the given function.
Q: can you help ?
A:
Q: Help!
A: Proposition: A proposition is a statement that is either true or false. Negation: Let p be a…
Q: I need help
A:
Q: need help!
A:
Q: answer asap please: Raw data are rates of return for 5 possible factory locations : 6.5 , 7. 7, 8.3,…
A: 1. Data Minimum = 1.2 2. Data Range = 8
bartleby

Concept explainers

Angles in Circles
Angles within a circle are feasible to create with the help of different properties of the circle such as radii, tangents, and chords. The radius is the distance from the center of the circle to the circumference of the circle. A tangent is a line made p…
Arcs in Circles
A circular arc is the arc of a circle formed by two distinct points. It is a section or segment of the circumference of a circle. A straight line passing through the center connecting the two distinct ends of the arc is termed a semi-circular arc.
Topic Video
Question

Help!

## Hypothesis Testing for Pre-Test and Post-Test Scores ### Problem Statement You wish to test the following claim (\(H_a\)) at a significance level of \(\alpha = 0.01\). For the context of this problem, the first data set represents a pre-test and the second data set represents a post-test. You'll have to be careful about the direction in which you subtract. - **Null Hypothesis (\(H_0\))**: \(\mu_d = 0\) - **Alternative Hypothesis (\(H_a\))**: \(\mu_d > 0\) ### Background Information You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for \(n = 46\) subjects. The average difference (post - pre) is \(\overline{d} = 6.2\) with a standard deviation of the differences of \(s_d = 35.3\). ### Questions to Answer 1. **Test Statistic Calculation** - **What is the test statistic for this sample?** Calculate and round to 4 decimal places. \[ \text{test statistic} = \boxed{} \] 2. **P-Value Determination** - **What is the p-value for this sample?** Round to 4 decimal places. \[ \text{p-value} = \boxed{} \] 3. **P-Value Comparison** - **The p-value is:** - \(\mathbf{o}\) less than (or equal to) \(\alpha\) - \(\mathbf{o}\) greater than \(\alpha\) 4. **Null Hypothesis Decision** - **This test statistic leads to a decision to:** - \(\mathbf{o}\) reject the null - \(\mathbf{o}\) accept the null - \(\mathbf{o}\) fail to reject the null 5. **Final Conclusion** - **As such, the final conclusion is that...** ### Explanation of Terms and Calculations - **Test Statistic**: This is a standardized value derived from sample data during a hypothesis test. It is calculated using the formula for t-test statistics based on sample means and standard deviations. - **P-Value**: The probability that the observed results would occur if
expand button
Transcribed Image Text:## Hypothesis Testing for Pre-Test and Post-Test Scores ### Problem Statement You wish to test the following claim (\(H_a\)) at a significance level of \(\alpha = 0.01\). For the context of this problem, the first data set represents a pre-test and the second data set represents a post-test. You'll have to be careful about the direction in which you subtract. - **Null Hypothesis (\(H_0\))**: \(\mu_d = 0\) - **Alternative Hypothesis (\(H_a\))**: \(\mu_d > 0\) ### Background Information You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for \(n = 46\) subjects. The average difference (post - pre) is \(\overline{d} = 6.2\) with a standard deviation of the differences of \(s_d = 35.3\). ### Questions to Answer 1. **Test Statistic Calculation** - **What is the test statistic for this sample?** Calculate and round to 4 decimal places. \[ \text{test statistic} = \boxed{} \] 2. **P-Value Determination** - **What is the p-value for this sample?** Round to 4 decimal places. \[ \text{p-value} = \boxed{} \] 3. **P-Value Comparison** - **The p-value is:** - \(\mathbf{o}\) less than (or equal to) \(\alpha\) - \(\mathbf{o}\) greater than \(\alpha\) 4. **Null Hypothesis Decision** - **This test statistic leads to a decision to:** - \(\mathbf{o}\) reject the null - \(\mathbf{o}\) accept the null - \(\mathbf{o}\) fail to reject the null 5. **Final Conclusion** - **As such, the final conclusion is that...** ### Explanation of Terms and Calculations - **Test Statistic**: This is a standardized value derived from sample data during a hypothesis test. It is calculated using the formula for t-test statistics based on sample means and standard deviations. - **P-Value**: The probability that the observed results would occur if
Expert Solution
Check Mark
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
bartleby
This is a popular solution
See solutionCheck out a sample Q&A here
Step 1
VIEW
Step 2
VIEW
bartleby

Trending nowThis is a popular solution!

bartleby

Step by stepSolved in 2 steps with 2 images

See solution
Check out a sample Q&A here
Blurred answer
Knowledge Booster
Background pattern image
Statistics
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
Text book image
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Text book image
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Text book image
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Text book image
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
Text book image
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Text book image
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman
SEE MORE TEXTBOOKS