Having done poorly on a particular exam in a junior high school, 24 students decide to write the exam again to try and improve their mark. Results are given in the following table.StudentAttempt 1 (A₁)Attempt 2 (A₂)Difference (d = A₁ - A₂)n242424Average5256-4.0Standard deviation3.84.43.0(a) Find a 98% confidence interval for the difference in mean scores between attempt 1 and attempt 2.(Round your answers to 4 decimal places, if needed.)(b) Based on this confidence interval, can we conclude there is a difference in mean scores between attempt 1 and attempt 2?O Yes, since the interval contains 0.No, since the interval contains 0.O Yes, since the interval is completely below 0.O No, since the interval is completely below 0.

Sample size n=24 Sample difference mean d=-4.0 Sample difference standard deviation sd=3.0…

Answered: Having done poorly on a particular exam…

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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