An airline company is interested in improving customer satisfaction rate from the 55% currently claimed. The company sponsored a survey of 223 customers and found that 133 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is higher than the claim by the company.
An airline company is interested in improving customer satisfaction rate from the 55% currently claimed. The company sponsored a survey of 223 customers and found that 133 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is higher than the claim by the company.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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![### Customer Satisfaction Rate Analysis
An airline company is interested in improving its customer satisfaction rate from the 55% currently claimed. The company sponsored a survey of 223 customers and found that 133 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is higher than the claim by the company.
#### Question 1: What is the Test Statistic \( z \)?
Input the test statistic \( z \) in the provided field.
Example: If the test statistic is 2.22, you should enter it like this:
\[ \text{Ex: 2.22} \]
#### Question 2: What is the \( p \)-value?
Input the \( p \)-value in the provided field.
Example: If the \( p \)-value is 0.123, you should enter it like this:
\[ \text{Ex: 0.123} \]
#### Question 3: Is there Sufficient Evidence?
Does sufficient evidence exist that the customer satisfaction rate is higher than the company's claim at a significance level of \( \alpha = 0.05 \)?
You can select your answer from the drop-down menu provided.
### Interactive Steps
At the bottom of the page, there are interactive steps to guide you through the analysis:
1. **Step 1:** Enter the test statistic using the format provided.
2. **Step 2:** Enter the \( p \)-value using the format provided.
3. **Step 3:** Select whether sufficient evidence exists based on the given significance level.
### Submission and Navigation
- **Check:** Button to verify your input.
- **Next:** Button to proceed to the next part of the tutorial.
### Visual Description
The interface includes a progress bar with step indicators (1, 2, 3) where the current step is highlighted. There are input fields and drop-down menus to facilitate data entry, and submission buttons for progressing through the task.
This exercise will help you understand how to use hypothesis testing in the context of improving customer satisfaction rates. Good luck!](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F27ec48fc-1061-48d0-b859-d5b1308c8e53%2F73e2a77a-de49-4583-a226-1574982aec1d%2Fn6yq1_processed.png&w=3840&q=75)
Transcribed Image Text:### Customer Satisfaction Rate Analysis
An airline company is interested in improving its customer satisfaction rate from the 55% currently claimed. The company sponsored a survey of 223 customers and found that 133 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is higher than the claim by the company.
#### Question 1: What is the Test Statistic \( z \)?
Input the test statistic \( z \) in the provided field.
Example: If the test statistic is 2.22, you should enter it like this:
\[ \text{Ex: 2.22} \]
#### Question 2: What is the \( p \)-value?
Input the \( p \)-value in the provided field.
Example: If the \( p \)-value is 0.123, you should enter it like this:
\[ \text{Ex: 0.123} \]
#### Question 3: Is there Sufficient Evidence?
Does sufficient evidence exist that the customer satisfaction rate is higher than the company's claim at a significance level of \( \alpha = 0.05 \)?
You can select your answer from the drop-down menu provided.
### Interactive Steps
At the bottom of the page, there are interactive steps to guide you through the analysis:
1. **Step 1:** Enter the test statistic using the format provided.
2. **Step 2:** Enter the \( p \)-value using the format provided.
3. **Step 3:** Select whether sufficient evidence exists based on the given significance level.
### Submission and Navigation
- **Check:** Button to verify your input.
- **Next:** Button to proceed to the next part of the tutorial.
### Visual Description
The interface includes a progress bar with step indicators (1, 2, 3) where the current step is highlighted. There are input fields and drop-down menus to facilitate data entry, and submission buttons for progressing through the task.
This exercise will help you understand how to use hypothesis testing in the context of improving customer satisfaction rates. Good luck!
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