Suppose the formative and summative grades in a College Algebra class for 11 students are given below: Students A B C D E F G H I J K Formative Grade 63 77 90 80 93 45 55 73 80 65 50 Summative Grade 85 100 95 97 100 80 90 97 90 92 75 Define D = Formative Grade – Summative Grade. You find that mean and standard deviation are -20.91 and 10.23 respectively.What would be the computed test statistic to test for higher mean summative score?(assume formative and summative grades are normally distributed) A. -2.04 B. -4.38 C. -6.78 D. -9.02 2. What is the best conclusion in this problem for testing the claim mentioned in problem 1? (use level of significance = 5%) A. At 5% level, the average formative score is significantly higher. B. At 5% level, the average summative score is significantly higher. C. At 5% level, the two scores are not significantly different. D. At 5% level, the two scores are indeed significantly different.
Suppose the formative and summative grades in a College Algebra class for 11 students are given below: Students A B C D E F G H I J K Formative Grade 63 77 90 80 93 45 55 73 80 65 50 Summative Grade 85 100 95 97 100 80 90 97 90 92 75 Define D = Formative Grade – Summative Grade. You find that mean and standard deviation are -20.91 and 10.23 respectively.What would be the computed test statistic to test for higher mean summative score?(assume formative and summative grades are normally distributed) A. -2.04 B. -4.38 C. -6.78 D. -9.02 2. What is the best conclusion in this problem for testing the claim mentioned in problem 1? (use level of significance = 5%) A. At 5% level, the average formative score is significantly higher. B. At 5% level, the average summative score is significantly higher. C. At 5% level, the two scores are not significantly different. D. At 5% level, the two scores are indeed significantly different.
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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1.Suppose the formative and summative grades in a College Algebra class for 11 students are given below:
Students A B C D E F G H I J K
Formative Grade 63 77 90 80 93 45 55 73 80 65 50
Summative Grade 85 100 95 97 100 80 90 97 90 92 75
Students A B C D E F G H I J K
Formative Grade 63 77 90 80 93 45 55 73 80 65 50
Summative Grade 85 100 95 97 100 80 90 97 90 92 75
Define D = Formative Grade – Summative Grade. You find that mean and standard deviation are -20.91 and 10.23 respectively.What would be the computed test statistic to test for higher mean summative score?(assume formative and summative grades are normally distributed )
A. -2.04
B. -4.38
C. -6.78
D. -9.02
2. What is the best conclusion in this problem for testing the claim mentioned in problem 1? (use level of significance = 5%)
A. At 5% level, the average formative score is significantly higher.
B. At 5% level, the average summative score is significantly higher.
C. At 5% level, the two scores are not significantly different.
D. At 5% level, the two scores are indeed significantly different.
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