not a graded question. A question that says: The first and second exam grades X,Yfor a sample of ten students in two Statistics exams were as follows: StudentFirstexamgrade XSecondexamgrade YD=Y-X1382326828-15NOTE: EX2=30775,-40H*3404146517061716105060756688127074944055510ΣΥ=34560,ΣΧΥ=31336a. Test at (a=0.05) if the mean grade of the first Statistics exam is above 50?b.Give 95% CI for the mean grades of the second Statistics exam?c. Compute the correlation coefficient between the first and the second exam grades?d. Test at (a=0.05) if the mean grades of the first and second Statistics exams are differernt?e. Give 95% CI for the difference in mean grades between the second and the first exams?10551570MeanSD54.3 11.971555.019.181.717.1

Provided that X and Y represent the first and second exam grades, respectively. The sample means,…

5 10 NOTE: EX²=30775, ΣΥ=34560, ΣΧΥ=31336 a. Test at (a=0.05) if the mean grade of the first Statistics exam is above 50? -40 . 1 10 12 4 15 15 1.7 b.Give 95% CI for the mean grades of the second Statistics exam? c. Compute the correlation coefficient between the first and the second exam grades? d. Test at (s 17.1

5 10 NOTE: EX²=30775, ΣΥ=34560, ΣΧΥ=31336 a. Test at (a=0.05) if the mean grade of the first Statistics exam is above 50? -40 . 1 10 12 4 15 15 1.7 b.Give 95% CI for the mean grades of the second Statistics exam? c. Compute the correlation coefficient between the first and the second exam grades? d. Test at (s 17.1

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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