Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 2 inches. The heights of 6 randomly selected students are 65, 75, 64, 65, 62 and 67. * = Ex: 12.34 Margin of error at 99% confidence level = Ex: 1.23 99% confidence interval = [Ex: 12.34 Ex: 12.34] [smaller value, larger value]
Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 2 inches. The heights of 6 randomly selected students are 65, 75, 64, 65, 62 and 67. * = Ex: 12.34 Margin of error at 99% confidence level = Ex: 1.23 99% confidence interval = [Ex: 12.34 Ex: 12.34] [smaller value, larger value]
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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![The image contains a problem about estimating the mean height of 9th-grade students in a high school. The problem states:
- The population standard deviation is 2 inches.
- Heights of 6 randomly selected students: 65, 75, 64, 65, 62, and 67 inches.
It asks for:
1. The sample mean (represented as \(\bar{x}\)), with an example placeholder: "Ex: 12.34".
2. The margin of error at a 99% confidence level, with an example placeholder: "Ex: 1.23".
3. The 99% confidence interval, with example placeholders: "[Ex: 12.34, Ex: 12.34]".
Below the questions, there are two navigation buttons, "Check" and "Next".
This setup is meant to guide students in calculating confidence intervals for a given sample using the known population standard deviation.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc697cfa7-35be-400d-88d6-26bf90a0b862%2Fa524f3bb-78c7-4690-8a6d-298f1a29117e%2Fiuoxua6_processed.png&w=3840&q=75)
Transcribed Image Text:The image contains a problem about estimating the mean height of 9th-grade students in a high school. The problem states:
- The population standard deviation is 2 inches.
- Heights of 6 randomly selected students: 65, 75, 64, 65, 62, and 67 inches.
It asks for:
1. The sample mean (represented as \(\bar{x}\)), with an example placeholder: "Ex: 12.34".
2. The margin of error at a 99% confidence level, with an example placeholder: "Ex: 1.23".
3. The 99% confidence interval, with example placeholders: "[Ex: 12.34, Ex: 12.34]".
Below the questions, there are two navigation buttons, "Check" and "Next".
This setup is meant to guide students in calculating confidence intervals for a given sample using the known population standard deviation.
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