A certain test preparation course is designed to help students improve their scores on the LSAT exam. A mock exam is given at the beginning and end of determine the effectiveness of the course. The following measurements are the net change in 5 students' scores on the exam after completing the cours 20, 26, 20, 11, 19 Using these data, construct a 90 % confidence interval for the average net change in a student's score after completing the course. Assume the populatio approximately normal. Step 3 of 4: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Answer H Tables How to enter your answer (opens in new window) Keybc Previous Submi © 2021 Hawkes Learning
A certain test preparation course is designed to help students improve their scores on the LSAT exam. A mock exam is given at the beginning and end of determine the effectiveness of the course. The following measurements are the net change in 5 students' scores on the exam after completing the cours 20, 26, 20, 11, 19 Using these data, construct a 90 % confidence interval for the average net change in a student's score after completing the course. Assume the populatio approximately normal. Step 3 of 4: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Answer H Tables How to enter your answer (opens in new window) Keybc Previous Submi © 2021 Hawkes Learning
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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![A certain test preparation course is designed to help students improve their scores on the LSAT exam. A mock exam is given at the beginning and end of the course to determine the effectiveness of the course. The following measurements are the net change in 5 students' scores on the exam after completing the course:
20, 26, 20, 11, 19
Using these data, construct a 90% confidence interval for the average net change in a student's score after completing the course. Assume the population is approximately normal.
**Step 3 of 4:** Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.
**Answer:**
[Text box for the answer]
---
This activity is related to calculating a confidence interval, which is a range of values that is used to estimate a population parameter. The critical value is crucial in determining the width of this interval, which in turn impacts the precision of your estimation.
*Note: The page includes a section for entering the answer and submitting it, but no graphs or diagrams are present.*](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4d6cd0c2-3c31-4bc1-bc75-e67b3787e452%2F301eafa4-0633-4d77-8e70-61df4d1d0c99%2Fh3tpf2_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A certain test preparation course is designed to help students improve their scores on the LSAT exam. A mock exam is given at the beginning and end of the course to determine the effectiveness of the course. The following measurements are the net change in 5 students' scores on the exam after completing the course:
20, 26, 20, 11, 19
Using these data, construct a 90% confidence interval for the average net change in a student's score after completing the course. Assume the population is approximately normal.
**Step 3 of 4:** Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.
**Answer:**
[Text box for the answer]
---
This activity is related to calculating a confidence interval, which is a range of values that is used to estimate a population parameter. The critical value is crucial in determining the width of this interval, which in turn impacts the precision of your estimation.
*Note: The page includes a section for entering the answer and submitting it, but no graphs or diagrams are present.*
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