You wish to test the following claim (Ha) at a significance level of a = 0.002. H.:µ = 84.8 На: и> 84.8 You believe the population is normally distributed and you 15.7. You obtain a know the standard deviation is o = sample mean of M 88.9 for a sample of size n = 42. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value =|3.050 X %3D What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic =| 1.692 v o
You wish to test the following claim (Ha) at a significance level of a = 0.002. H.:µ = 84.8 На: и> 84.8 You believe the population is normally distributed and you 15.7. You obtain a know the standard deviation is o = sample mean of M 88.9 for a sample of size n = 42. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value =|3.050 X %3D What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic =| 1.692 v o
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
100%
![## Independent Samples t-Test
### Problem Statement
You wish to test the following claim ( \(H_a\) ) at a significance level of \( \alpha = 0.002 \).
\[
\begin{aligned}
H_0: \mu &= 84.8 \\
H_a: \mu &> 84.8 \\
\end{aligned}
\]
### Given Data
- Population standard deviation, \(\sigma = 15.7\)
- Sample mean, \(M = 88.9\)
- Sample size, \(n = 42\)
### Hypothesis Test
You believe the population is normally distributed and you know the standard deviation. The goal is to determine the critical value and test statistic for this sample.
### Calculations
**Finding the Critical Value:**
- Significance level (\( \alpha \) ) = 0.002
- Critical value (accurate to three decimal places):
\[
\text{critical value} = 3.050 \quad (\text{incorrect})
\]
**Finding the Test Statistic:**
- Given the sample mean (\( M \) ), population mean (\( \mu \) ), population standard deviation (\( \sigma \) ), and sample size (\( n \) ):
- Test statistic (accurate to three decimal places):
\[
\text{test statistic} = 1.692 \quad (\text{correct})
\]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbbcfe71f-e5aa-493d-ada8-4282b114e3cf%2F8a922c27-3f34-4773-bb7d-74d50e34fa6e%2Fgofu0p_processed.jpeg&w=3840&q=75)
Transcribed Image Text:## Independent Samples t-Test
### Problem Statement
You wish to test the following claim ( \(H_a\) ) at a significance level of \( \alpha = 0.002 \).
\[
\begin{aligned}
H_0: \mu &= 84.8 \\
H_a: \mu &> 84.8 \\
\end{aligned}
\]
### Given Data
- Population standard deviation, \(\sigma = 15.7\)
- Sample mean, \(M = 88.9\)
- Sample size, \(n = 42\)
### Hypothesis Test
You believe the population is normally distributed and you know the standard deviation. The goal is to determine the critical value and test statistic for this sample.
### Calculations
**Finding the Critical Value:**
- Significance level (\( \alpha \) ) = 0.002
- Critical value (accurate to three decimal places):
\[
\text{critical value} = 3.050 \quad (\text{incorrect})
\]
**Finding the Test Statistic:**
- Given the sample mean (\( M \) ), population mean (\( \mu \) ), population standard deviation (\( \sigma \) ), and sample size (\( n \) ):
- Test statistic (accurate to three decimal places):
\[
\text{test statistic} = 1.692 \quad (\text{correct})
\]
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
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
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
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](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
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](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
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…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
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](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman