### Calculating the Critical Value for a 95% Confidence Interval**Problem Statement:**Using the table provided in class, calculate the critical value of "t" for a 95% confidence interval with 30 degrees of freedom (df).**Diagram Explanation:**The diagram shows a symmetrical bell curve representing a t-distribution. The central area, labeled "95%," indicates the confidence interval. The two red boxes marked with question marks ("?") are the critical points on either side of the mean (0), which are the values needed to determine the confidence interval. The horizontal axis is labeled "t."**Answer Choices:**- a. 2.457- b. 2.042- c. It is not in the "t" table- d. 1.697### Instructions:- Refer to the t-distribution table provided in your class materials.- Identify the value corresponding to a 95% confidence level and 30 degrees of freedom.- Select the correct answer based on your calculation.**Note:**Always click "Save and Submit" once you have entered your answer to ensure it is recorded.

Answered: Using the table provided in class,…

Using the table provided in class, calculate the critical value of "1" for a 95% confidence interval with 30 df. ? a. 2.457 O b. 2.042 O c. It is not in the "i"table O d. 1.697 95% 0 ? - t

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

### Calculating the Critical Value for a 95% Confidence Interval

**Problem Statement:**
Using the table provided in class, calculate the critical value of "t" for a 95% confidence interval with 30 degrees of freedom (df).

**Diagram Explanation:**
The diagram shows a symmetrical bell curve representing a t-distribution. The central area, labeled "95%," indicates the confidence interval. The two red boxes marked with question marks ("?") are the critical points on either side of the mean (0), which are the values needed to determine the confidence interval. The horizontal axis is labeled "t."

**Answer Choices:**
- a. 2.457
- b. 2.042
- c. It is not in the "t" table
- d. 1.697

### Instructions:
- Refer to the t-distribution table provided in your class materials.
- Identify the value corresponding to a 95% confidence level and 30 degrees of freedom.
- Select the correct answer based on your calculation.

**Note:**
Always click "Save and Submit" once you have entered your answer to ensure it is recorded.

Expert Solution

Step 1: Determine the given variables.

The question is about t distribution.

Given :

Level of confidence ( C ) = 0.95

Degree of freedom ( df ) = 30

To find :

Critical value

Step by step

Solved in 3 steps with 2 images

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