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Please solve very soon part b

Please solve very soon part b

MATLAB: An Introduction with Applications
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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Please solve very soon part b

Q2: The average score of all graders in school District A on a math aptitude exam is 75 with a standard deviation of 8.1. A random sample of 100 students in one school was taken. The mean score of these 100 students was 71. Does this indicate that the students of this school are significantly more skilled in their mathematical abilities than the average student in the district? (Use a 5% level of significance.) b. Construct a 95% confidence interval for the population mean. a.
Transcribed Image Text:Q2: The average score of all graders in school District A on a math aptitude exam is 75 with a standard deviation of 8.1. A random sample of 100 students in one school was taken. The mean score of these 100 students was 71. Does this indicate that the students of this school are significantly more skilled in their mathematical abilities than the average student in the district? (Use a 5% level of significance.) b. Construct a 95% confidence interval for the population mean. a.
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