A survey found that 55% of college presidents believe that their online education courses are as good as or superior to courses that use traditional face-to-face instruction. a. Give the null hypothesis for testing the claim made by the survey. b. Give the rejection region for a two-tailed test conducted at a = 0.01. a. What is the null hypothesis? = d:°H 0.55 (Type an integer or a decimal.) b. What is the rejection region? Select the correct choice below and fill in any answer boxes to complete your choice. (Round to three decimal places as needed.) O A. O C. z< O D. z>

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
icon
Concept explainers
Question
**Survey Analysis on Online Education Perception Among College Presidents**

A recent survey found that 55% of college presidents believe that their online education courses are as good as or superior to traditional face-to-face instruction. The following prompts illustrate the steps to test the claim made by the survey statistically.

### Question:
**a. Give the null hypothesis for testing the claim made by the survey.**  
**b. Give the rejection region for a two-tailed test conducted at α = 0.01.**

#### Answer:

**a. What is the null hypothesis?**

The null hypothesis (H₀) for the survey claim can be expressed as:

\[ H₀: p = 0.55 \]

where \( p \) represents the proportion of college presidents who believe that their online courses are as good as or superior to traditional face-to-face instruction.

**b. What is the rejection region?**

The rejection region for a two-tailed test at α = 0.01 requires determining the critical z-values that correspond to this significance level. The options given are:

- **A. \[ \_\_\_\ < z < \_\_\_\ ]**
- **B. \[ z < \_\_\ \text{ or } z > \_\_\ ]**
- **C. \[ z < \_\_\_\ ]**
- **D. \[ z > \_\_\_\ ]**

To find the critical z-values, we need to locate the z-scores that form the cutoff points for the tails. The area in each tail will be \(\frac{\alpha}{2} = 0.005\). Using z-tables or a statistical calculator, the critical values for a two-tailed test at α = 0.01 are approximately ±2.576.

Thus, the rejection region to test this hypothesis is:

\[ z < -2.576 \text{ or } z > 2.576 \]

Figuratively, this corresponds to option:

- **B. \[ z < -2.576 \text{ or } z > 2.576 \]**
Transcribed Image Text:**Survey Analysis on Online Education Perception Among College Presidents** A recent survey found that 55% of college presidents believe that their online education courses are as good as or superior to traditional face-to-face instruction. The following prompts illustrate the steps to test the claim made by the survey statistically. ### Question: **a. Give the null hypothesis for testing the claim made by the survey.** **b. Give the rejection region for a two-tailed test conducted at α = 0.01.** #### Answer: **a. What is the null hypothesis?** The null hypothesis (H₀) for the survey claim can be expressed as: \[ H₀: p = 0.55 \] where \( p \) represents the proportion of college presidents who believe that their online courses are as good as or superior to traditional face-to-face instruction. **b. What is the rejection region?** The rejection region for a two-tailed test at α = 0.01 requires determining the critical z-values that correspond to this significance level. The options given are: - **A. \[ \_\_\_\ < z < \_\_\_\ ]** - **B. \[ z < \_\_\ \text{ or } z > \_\_\ ]** - **C. \[ z < \_\_\_\ ]** - **D. \[ z > \_\_\_\ ]** To find the critical z-values, we need to locate the z-scores that form the cutoff points for the tails. The area in each tail will be \(\frac{\alpha}{2} = 0.005\). Using z-tables or a statistical calculator, the critical values for a two-tailed test at α = 0.01 are approximately ±2.576. Thus, the rejection region to test this hypothesis is: \[ z < -2.576 \text{ or } z > 2.576 \] Figuratively, this corresponds to option: - **B. \[ z < -2.576 \text{ or } z > 2.576 \]**
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Correlation, Regression, and Association
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
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