p3 answer only 16. what is the critical value17. what is the sample mean of the difference of sampled pair (use d for the d bar)18. what is the sample sd of the difference of sampled pair (use S_D for standard deviation)19. what is the computed value (3 decimal places)20. compare the computed value and the critical value. what is the relationship between the two values?) The principal wants to determine if the teachingstrategies of his teachers used in online teachingare effective or not. A sample of 10 students israndomly chosen. They took a pre-test and a post-test. The scores of each student are listed below.At a=0.01. Is there enough evidence that theteaching strategies are effective?Student2253467.9t0352734152118372535Pre-testPost-test38275035262717243025

From the given information, the level of significance is 0.01.

16. what is the critical value 17. what is the sample mean of the difference of sampled pair (use d for the d bar) 18. what is the sample sd of the difference of sampled pair (use S_D for standard deviation) 19. what is the computed value (3 decimal places) 20. compare the computed value and the critical value. what is the relationship between the two values?)

16. what is the critical value 17. what is the sample mean of the difference of sampled pair (use d for the d bar) 18. what is the sample sd of the difference of sampled pair (use S_D for standard deviation) 19. what is the computed value (3 decimal places) 20. compare the computed value and the critical value. what is the relationship between the two values?)

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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Maria wants to know if the number of words on a page in her earth science book is generally more than the number of words on a page in her math book. She takes a random sample of 25 pages in each book, then calculates the mean, median, and mean absolute deviation for the 25 samples of each book. Mean Median Mean Absolute Deviation Earth science| 48.9 41 9.2 Math 34.5 44 1.9 She claims that because the mean number of words on each page in the earth science book is greater than the mean number of words on each page in the math book, the earth science book has more words per page. Based on the data, is this a valid inference? O Yes, because the mean is larger in the earth science book. O No, because the mean is larger in the earth science book. O Yes, because there is a lot of variability in the earth science book data. O No, because there is a lot of variability in the earth science book data.
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