a. What is the null and alternative hypothesis? b. What is the test statistic to be used, the appropriate critical region and the actual value of the test statistic? c. What is the statistical decision and statistical conclusion?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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A test was conducted on the improvement of students before and after having remedial classes. Test
Score 1 was the result before having remedial classes and Test Score 2 after having remedial
classes. Is it possible that the two sets of score significantly differ? Use 0.05 level of significance.
Student
1
2
3
4
5
6
Test Score 1
25
36
45
20
23
33
Test Score 2
30
40
a. What is the null and alternative hypothesis?
b. What is the test statistic to be used, the appropriate
critical region and the actual value of the test statistic?
c. What is the statistical decision and statistical
conclusion?
41
22
20
35
Difference
5
4
-4
2
-3
2
Transcribed Image Text:A test was conducted on the improvement of students before and after having remedial classes. Test Score 1 was the result before having remedial classes and Test Score 2 after having remedial classes. Is it possible that the two sets of score significantly differ? Use 0.05 level of significance. Student 1 2 3 4 5 6 Test Score 1 25 36 45 20 23 33 Test Score 2 30 40 a. What is the null and alternative hypothesis? b. What is the test statistic to be used, the appropriate critical region and the actual value of the test statistic? c. What is the statistical decision and statistical conclusion? 41 22 20 35 Difference 5 4 -4 2 -3 2
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